We couldn’t wait any longer for another developer update for the Reborn project. Last week, we added support for WhatsApp and Messenger. Today we are adding another communicator to the sidebar – Telegram. In addition to this, the latest update to the Opera Developer 45 brings some visible UI changes, faster video on Windows, and further tuning and fixes.

It’s Telegram’s time

Telegram is a popular messaging app with focus on security and privacy. It allows you to send messages, photos, videos, and files of any type for up to 5,000 recipients. Now, you will find it in the new Reborn sidebar along with the already available Facebook Messenger and WhatsApp.

Similarly to our current communicators, you can simply log in to the service and start chatting.

Now with Telegram, the Reborn project has three communicators available by default in the sidebar. Do you think it’s too many? What do you think about having the most popular communicator visible by default, and others available as an option? Tell us your thoughts in the comment section.

Narrow sidebar for Mac

The new sidebar in the Mac version of Opera Developer can be now as narrow as on Windows. To adjust it, go to Settings -> Browser -> Sidebar -> “Enable Narrow Sidebar”, or use the sidebar context menu.

UI improvements for Windows 7

Based on your requests, we have also brought for you a more familiar platform feeling on Window 7. The latest version of Opera Developer for Windows 7 uses its system button to close, maximize, and minimize a window, as well as adjust transparent borders to fit to the platform.

Faster video on Windows

Most graphics processing units (GPUs) can decode videos highly efficiently. With this release, we will send even more videos to the GPU for decoding on Windows. This will allow for significantly higher framerates, higher resolutions, and lower battery usage for these videos.

Since we (sadly) do not have access to all possible graphics cards and drivers, we are keen to hear about your experiences here. So try watching HTML5 videos and listen to an audio file, and if something is broken, please let us know in a comment or bug report. You can disable and enable the new code through the #media-windows-mf-demuxer flag in opera:flags.

Big Buck Bunny (from HTTP links) is always a good test.

Technical mumbo jumbo

A web page can play native videos through two different APIs: a streaming API (MSE) and by using video and source tags directly. This release makes the video and source tag API hardware-accelerated when using an H.264 (mp4) video on Windows, just as the streaming API has done for a long time.

If this works well, we want to do the same for Mac and Linux.

Other info
  • Chromium is updated to version 58.0.3018.3
  • The changelog

Thanks for all the comments. Keep them coming!

Installation links:

Maciej Kocemba

Product Manager, Opera for computers. Previously Product Manager in R&D department and Opera Mini for iOS. Joined Opera over 11 years ago. Still passionate about coding, mountain / road biking when not working.

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  • nanana1

    Thank you for this Opera Developer build 45.0.2531.0 !

    • Would you like to have snapshot functionality as in Opera Neon?

  • Michael Pürmayr

    Please let the Chat-icons be visible, just make it straight forward to remove them if somebody wants them removed. If they are not visible by default, they won’t be used (which would be a pitty)

    • Wando Schneider

      Right click in the sidebar, uncheck the messenger and it’s done.

      • Michael Pürmayr

        i know, my remark just was to make sure it stays so simple.
        If it does, I like to have all the icons at default.

        • Not only messengers, it shall be also easy to configure other elements of sidebar as well.

  • Matheus Bombonato

    Its getting better and better. For my usage I just need Gtalk and Skype. Then I’ll be able to stop using other communicator apps.

    Any plans for webpanels? (custom panels). That would kill the need for extensions like twitter, keep, instagram, facebook…

    Thnaks for the good work!

    • Alex Wazovskiy

      +1 for webpanels. Once I tried to make a simple extension for sidebar, which opens mobile version of VK (social network), but without JS coding capabilities it’s impossible, because of clickjacking and XSS protection. I think, developers should make advance sidebar to webpanels to make it moar functionable.

      • Matheus Bombonato

        Yep… that’s the exact problem I’ve faced developing my extensions (Keep, Instagram and Tweetdeck). I’ve gave up trying to fix some bugs related to the use of iFrames.

  • LoverOfLife

    Can you make this usable ? “Show system color on top bar”

  • Alex Wazovskiy

    Does it mean that previous versions of Opera had no GPU video acceleration until now??? O_o

    • Daniel Bratell

      Current Opera has fully working hardware accelerated video on all the popular video sites, like YouTube and Vimeo!

      Certain other videos that were not though. In this release we fixes that gap so that all H.264 video gets properly hardware accelerated.

      • Alex Wazovskiy

        Hmm… On some sites in Stable Opera there is video lags, on the contrary in Firefox there no video lags. How to get know, is these videos is H.264?

        • Daniel Bratell

          Some sites, like YouTube, has a right click menu with “technical details”, but otherwise it’s quite hidden.

          There is the debugging page opera:media-internals but it’s not been designed to be easy to read, also, it makes things slower when it is open.

          To use, open the video, open opera:media-internals and the video will be listed there as a button. Click the button and a log appears down at the bottom of the page. Look for “video_codec_name” and if it says h264, then it’s H.264.

          Then close the page because it makes video slower.

          • Alex Wazovskiy


        • Daniel Bratell

          If it is slower than Firefox also in the Developer version of Opera, can you give a link to an example movie?

          • Alex Wazovskiy

            It seems in the Opera Developer now playing videos smooth.

      • RussianNeuroMancer

        > Current Opera has fully working hardware accelerated video on all the popular video sites, like YouTube and Vimeo!

        If possible, can you please provide this functionality on Linux too, hidden behind disabled-by-default flag? And then ask Linux users for reports, like you asked Windows users in this blog post. Thanks in advance.

        Code is here: https://github.com/saiarcot895/chromium-ubuntu-build/commits/master/debian/patches/enable_vaapi_on_linux.diff

  • senja1

    “Now with Telegram, the Reborn project has three communicators available by default in the sidebar. Do you think it’s too many? What do you think about having the most popular communicator visible by default, and others available as an option?”

    If any of this is there by default, it’s too many. We don’t need any of this by default. Make it all as options. Than let the users decide if they need this. You can add it as many as you want, but only as option.

    • Matheus Bombonato

      You can disable them by just right clicking. I believe they will be disabled by default on the final version as this list of protocols might increase.

      • Nekomajin43

        It would be better, but still making the start page settings crowded.

    • bwat47

      IMO it would be nice if there was an add button that would give you a list of supported services (e.g. messenger, whatsapp etc…) that you can add, similar to the add a site button on the speed dial

      • Nekomajin43

        HUGE +1
        It must be the ultimate solution.

  • Ktoś

    Non should be default – let’s user choose;

    Apart from the fact that IM fragmentation is utterly stupid and there should be one standard…

  • jg che

    Once I sync with my account, the browser cannot start anymore, which also happens in the previous developer version. If do not login my account, Opera works well.
    platform: windows 7 professional, x64.

  • bwat47

    “If this works well, we want to do the same for Mac and Linux.”

    Is there any clarification on this regarding linux?

    Unlike mac/windows which do already have hardware acclerated html5 video on some sites, afaik, chrome/chromium on linux currently does not support hardware decoding with html5 on linux at all (the code is there, but there’s no flag to enable it even if you override the gpu blacklist, you need to compile chromium with it enabled to get it currently): https://bugs.chromium.org/p/chromium/issues/detail?id=137247

    Does this mean opera is considering enabling this by default?

    • Daniel Bratell

      I am not an expert on video decoding on Linux but I’ve understood that it is a bit more complicated than other platforms because of the lack of a high level decoding API. I really hope it’s not too complicated.

      • Angry Penguin

        HI Level API is here. VAAPI – working on open source driver Intel, Nvidia nouvau and AMD RadeonSI, also is supported by closed source AMD Catalyst/AMDGPU-PRO. On NVIDIA site we have VDPAU and it also working on closed source nvidia driver and also for all opern source.
        So this is here. We just need eneble it in browser.

        • Daniel Bratell

          I stand corrected. You learn something every day.

    • Angry Penguin

      I think, they want enable this flag like in Chromium DEV PPA build from Saikrishna Arcot.
      HW is here, in Chromium code but it is force disabled not by flag but in compiling time. Quick check on flags, look #disable-accelerated-video-decode is only available for mac and windows on Linux is unavailable. But when we compile Chromium with enable HW, this flag is now simple available. So HW is not depending for us flag and if we have chrome:gpu “all green” so HW working. So this is possible, but need few changes in Opera code. I hope to see it soon and If Opera bring it to Linux, will be my, and probably many other Linux users default browser.

  • Still getting error page for both Messenger and Telegram.

    Edit: Oh wait… WhatsApp doesn’t work as well…

    • Do you use any proxies? If so you can try disabling them for a while.

  • L33t4opera

    Hi Maciej, thanks for the update, and fixes 😉

    Two new flags:
    – opera:flags#adblocker-split-rules
    Allows selectively enabling internal rules.

    – opera:flags#WebRtcUseEchoCanceller3
    Experimental WebRTC echo canceller (AEC3).

  • Helder

    I hope that works on my laptop, as right now I’m having to use Edge to watch youtube, because on Opera there’s to much frameskip.

    • What’s your setup?

      • Helder

        Its a Samsung laptop with an i5 3230m, 8GB RAM and AMD HD8850m 2GB.

    • Daniel Bratell

      Did you have a chance to try? It would be good to know if this fixes your problems.

      • Helder

        Yes, I tested, but at least for me it didn’t solved the problem.

        • Daniel Bratell

          Do you have an example of a video that works badly?

          Another suspicion I have is that we are deliberately not using your GPU because of some known problem. If that is the case then opera:gpu might say something in red letters.

          • Helder

            Any video in 1080p. Fullscreen increases the problem.

            Thats what is showing on opera://gpu http://i.imgur.com/cfShrcS.png

            Have the same problem on Chrome.

            I tested on Vivaldi, and it works. Thats vivalvi://gpu http://i.imgur.com/5JBww8V.png
            But the performance is still not so good, using ~50% CPU, while Edge uses ~15%.

            The difference that I found between Opera, Chrome and Vivaldi is on AMD Graphics Driver. On switchable graphics config, both Opera and Chrome are on low performance mode and locked, while Vivalvi is on high performance and unlocked, so I can change Vivaldi mode, but I cannot change Opera mode.
            Because of that, on Opera, GL_RENDERER = ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0), while on Vivaldi is GL_RENDERER = ANGLE (AMD Radeon R9 M200X Series Direct3D9Ex vs_3_0 ps_3_0)

          • Daniel Bratell

            “GPU process was unable to boot” is the main diagnostic here, but I cannot say why. Without the GPU process everything will be done in software and then I understand that full screen video is not very fast.

            This is not my area but http://crbug.com/669658 mentions one cause being that someone has enabled the flag “–enable-unsafe-es3-apis” which then crashes the GPU process. Have you done something like that?

            At the bottom of opera:gpu is a short log. Could you check that one out and see what it says?

            Looking for a new video driver is also an option.

          • L33t4opera

            Hi Helder, please go to opera:flags#ignore-gpu-blacklist, and enable it, restart the Opera, and see if this helps in your case.

          • Helder

            That actually worked. Its now using my dedicated GPU. Both Opera Stable and Reborn works with the same efficiency, theres still same dropped frames, but a lot less. It uses like ~40% of my CPU. Edge is still better, without any drop, but now its usable. Thanks

  • Roman De Santa

    how to change system buttons to close, maximize, and minimize a window in windows 7 to buttons like in windows 10???
    like it was in previous builds

  • led9ru

    “uses its system button to close, maximize, and minimize a window, as well as adjust transparent borders to fit to the platform.”
    I NOT have that! How i turn this on?
    My opera look like skin for windows 10, not transparent and button not as in your screenshot!
    Windows 10 skin
    Custom-drawn Windows 10 titlebar
    try “on” this and “off” = No effect

    • Alex Wazovskiy

      It’s in Opera Developer thing. If you are on Opera Developer, update it to latest version.

      • led9ru

        45.0.2531.0 (PGO) = this version. transparent in other version?

        • Alex Wazovskiy

          Yes. I have W7 buttons and transparent borders.

          • led9ru

            What “Yes”? What is the number of your version of the opera? 45.0.2531.0 (PGO)? I have this and NO transparent.

          • Alex Wazovskiy

            45.0.2531.0 (PGO)
            Did you mean the transparency of titlebar? It’s only for borders.

          • Nekomajin43

            So it’s all for nothing. Instead of the proper Aero integration, they try to mimic it, and fail.

          • led9ru

            But I do not even have normal buttons! (Like in win7)
            The color of the upper part of the opera is disgustingly bluish, can it be done for gays? 🙂

          • Nekomajin43

            Please, stop the gay stuff.

  • Nekomajin43

    The Win7 skin is better, but this grey tab bar is still ugly as hell. Please implement the Aero feature, and change back to blue, or use the system colors!

    And remove the jumpy effect from the speed dial. It is still annoying!

    • pauloaguia

      “And remove the jumpy effect from the speed dial. It is still annoying!”
      Not to mention, counter productive. Example:
      * Approach the tile slowly from below.
      * Stop at the first few pixels where the mouse cursor changes
      * Click – everytime you click the tile jumps and moves away from the mouse cursor… which means you’re now clicking outside of the tile. You can actually make the tile jump on each click without actually accomplishing anything (other than making the tile go up and down)

      Granted, the limit is of only a few pixels, and most people will click in the center of the tile and not in the bottom border… but it’s still quite ridiculous that the cursor changes into an action mode when you can’t still trigger the action…

    • Rudric

      Is W7 skin lighter than than W8/10?

      If one uses W8+ skin – is W7 skin still there beneath? Consuming resources…?

  • Nekomajin43

    Where can I find the Weather widget, and what is this Paper cuts bookmarks thing?

    • Leonardo Gomes

      I guess the weather widget was caught by the wind. 😀

      • Nekomajin43


    • This was revert of some initial task implementation. Adjusted this in changelog.
      Paper cuts is an ongoing work to improve overall quality of some features. For bookmarks this is currently adjustment of heart menu popup usability. Currently this task is related to flag #improved-heart-popup.

      • Nekomajin43

        So there will be no weather widget?

        • Not that one that was removed 🙂

  • iYuzver

    “Sidebar for Facebook Messenger, WhatsApp and Telegram”

    For Vkontakte?!

    Synchronization Extensions.
    Native translate in Chrome.
    Recently closed tabs 50+.
    Disable display open tabs.
    Display columns bookmarks: http://funkyimg.com/i/2mina.jpg
    Need a South Korea, Japan and China VPN!
    Management of downloading from a context menu: http://funkyimg.com/i/2jpGc.jpg
    The ability to move the extension icons on the panel.

  • pauloaguia

    My sidebar is pretty much full by now with all the messenger options enabled (I have them disabled but in case I didn’t, not much more would fit there).
    Personally, I think that unless you have them visible people will not use them but you’ll have to draw the line soon on what stays visible and what not (or maybe have some helper tooltip warning about their existence when people enable the sidebar?)

    Regarding Win7 I like the fact that Alt+Space menu is back as well as the top left corner window icons. Title bar is still very different from the rest of the applications. And I have another strange effect:
    On every app, if I hover the mouse on its icon in the taskbar, a popup is displayed with a preview of that window (or windows, if there’s more than one instance). Right clicking that window preview I get the system menu – however, in Opera’s case, the popup just disappears, nothing happens…

    • Nekomajin43

      There is too much empty space among the icons. It should buy some free space, but it will reach its limit soon.

  • Carson Coyote

    Close, but not quite.
    Opera beta 44: http://imgur.com/OszZFYj
    Opera developer 45: http://imgur.com/YdyqVNX

  • patkoscsaba

    Looks good. I love the narrow side-bar on MacOS.

    • Either you love it or hate it 🙂

  • iYuzver
  • pauloaguia

    The future of Opera’s sidebar, full of messaging systems: https://xkcd.com/1810/ 🙂
    (by the way, I think that gives a clear hint as to what would be the most important ones to integrate :P)

  • redfox

    What about tabs with rounded corners? 🙂

  • Grochu

    Good work, keep it up 🙂

  • Юлия

    I think people asked for Windows 7 native skin back, from previous version, not Windows 7 wannabe window control buttons which don’t even scale properly:


    Look at how blurry they are, and they don’t even look like Windows 7’s buttons. Who at Opera looked at this and though it’s a good idea?

    • Nekomajin43

      +1 for the native Aero skin

    • pauloaguia

      They look very different indeed: http://i.imgur.com/6ifxYQL.png

      • Nekomajin43

        Can you see the content behind the topmost window?

        • pauloaguia

          If by topmost you mean the one at the top of the image then yes, that red area at the top left is actually fom my desktop image and can be seen through the title bar of that window (as also happens with the one in the bottom right, where you can see the borders of the window under it)
          If by topmost you mean the Opera browser window then no, that one is completely opaque except for a small border, maybe 5 pixels wide, unlike most other windows which behave like those other two (exception for the Microsoft Office and Microsoft Visual Studio applications which are completely opaque, don’t have rounded corners and don’t have system buttons like these either)

    • led9ru

      “transparent borders” – Why is it even necessary? You do not maximize the opera window?

      And just – for the sake of what the users of the Opera have been deprived of the opportunity to use Aero? Which of the developers or moderators from this it is easier to live? Name sister, name!

      • Юлия

        No, I don’t maximise Opera or any other window for that matter. Why would I do that on my desktop’s 27″ 2560×1440 monitor? Having multiple windows open at a time without the space concern is why I bough a large monitor in the first place. Rarely a website needs more than 1024 or 1280px width.

        The new design is a poorly executed attempt at mimicking Aero-like buttons which do not even scale properly. They went from good to absolutely terrible in two builds. Now scaling looks blurry. They took away something that was there and working perfectly fine in the first place, and replaced it with something inferior, both in terms of looks and performance – as the new interface is also resource heavy.

  • Herr Pietrus

    Guys, these buttons on Windows 7 are terrible!
    We wanted full support of the native skin we use, with aero!
    Do you know that there is a simple method to use third party skins on Windows and many people do that?

    The biggest problem with this part of the UI was it’s size and that ridiculous gradient. I see that the gradient was tuned as well as the hight – and that’s great! – but if you don’t want to bring back full support of the native skins please, restore these “Modern” buttons, only make them smaller. (Same as the new tab button)
    However I see that on the Mac Opera uses native blur and transparency effect, so…

    On Windows currently it looks even worse than it was!

    And please, make the free spaces between the buttons on the expanded sidebar and the buttons itself a bit smaller, That huge opera icon also looks really bad too. Don’t know why 🙂 Perhaps because it isn’t aligned with the tabs, or it doesn’t fit minimalistic icons, if we disable all the communicators?

    And what about removing word “Opera” form the menu button and leaving only the icon even with the sidebar “inside” the main window? Then we would have a bit more space for tabs.

    And don’t you think that the sidebar background should follow the windows theme color settings?

    Howsoever, GPU acceleration sounds interesting 🙂

    Oh, and i think that green color in the RSS reader was nicer 🙂
    And you have to replace the speed dial icon on the main toolbar, if you want make all the icons modern and ugly 😛 It should be the same as the icon on the sidebar.
    I know you know… 🙂

  • Cjcr

    A big thank you for adding Telegram to the list of supported services. Great addition.

  • fei_l0ng

    thanks for the snapshot 🙂 unfortunately I now get a black box instead of videos on youtube, I can hear the sound though.
    I am on Debian Linux Jessie + Intel Graphics i915.
    And while you’re at adding messengers, why not add Threema as well (web.threema.ch) it’s quite popular in german-speaking countries in europe and the web part is open source (https://github.com/threema-ch/threema-web/).

    • MarkusMK

      I would also like Threema

    • L33t4opera

      Hi, regarding the “black box”, please have a look here.

  • AriZone

    Hello, videos on imbd and facebook doesn’t work. Real acceleration ;]

  • Angry Penguin

    Yes, Yes, Yes for hardware-accelerated video on Opera for Linux. I hope to see it 🙂 Thanks devs 🙂

  • Angry Penguin

    I want from Opera three things on Linux.
    1. HW video on Linux (possible by adding in compile time one flag, look at chromium dev ppa)

    2. PGO (possible, PGO is available for Linux via GCC or LLVM Clang)
    2. Own window border to change titlebar (I know three chromium based browser who use custom and look fine. With new Opera Reborn UI – this change should be amazing for Linux)

    • Kornelia

      Please see my colleague’s comment here: http://blogs.opera.com/desktop/2017/02/opera-stable-43-0-2442-991-update/#comment-3168783831
      Hardware acceleration for video on Linux: this is more complicated then you make it out to be. There’s a reason this is not enabled in Chrome, and the reason is that it’s known not to work correctly with certain video cards / driver combinations, and resources to maintain an (extensive…) blacklist for Linux are not available. Not at Google and not at Opera.
      It’s implemented in Chromium (as a build option) as a way of being able to test hw accelerated video (to fix bugs for other platforms as well) if it happens to work with the driver combination you’re using.
      Enabling it in Opera would mean running with code that’s explicitly not supported by Google, and known not to work in various situations. Functionality working is more important than it being fas

      • Angry Penguin

        Thanks for the answer.
        I agree. HW code is in Chromium and Chromium DEV PPA with my tests works very well. I tested three sets of drivers. Closed source AMD driver, open source Radeon, and on Intel. I have not tested on NVIDIA – because I don’t have any NV GPU. However, reading comments for Chromium PPAs I see a lot of positive comments, so it should works very well on NVIDIA GPUs.

        What I suggest? Compile Opera developer, with code HW Chromium. The code will be active as is in this Chromium DEV PPA, but the beginning, you can lock it by default in flag. I mean flag # ignore-gpu-blacklist, leave it to off by default.
        For the tests, who want activates it, can manually activates it in opera:flags by disable # ignore-gpu-blacklist. In this way, you will collect information on what hardware and drivers this feature works well, and which has problems.
        In this way you will be able to create a so-called “blacklist” to later activate the feature for supported systems, and lock for unsupported.

        What do you say about this?

  • Marek

    The closing buttons on Win7 now actually look worse.

    • Anonimo

      Right?! Exactly how I feel! They don’t match the toolbar’s icons. I don’t see the point in changing UI at all, it all matched before, just color scheme would be enough!

    • OrdinaryPeople

      I also prefer the close button sets like before, metro style buttons looks mathed with the sidebar buttons 🙂

  • cr2004

    Na Mac’u wygląda całkiem całkiem, ale pod windows’em graficznie to porażka. Mam wrażenie, że pod względem wyglądu interface’u wszystko idzie w złym kierunku. 🙁

    • Kornelia

      Thanks for your opinion. Next time use english please.

  • Denyer

    Without vertical tabs, all of this is for naught. Get on it!

  • Stanislav Stratil

    Well, Im on Windows 7 and I really do appreciate your UI work there. Im actually surprised that you did take some action on this topic, and these new buttons are pretty much ok by my opinion.
    But the glass border seems little pointless and looks weird.

    But even so, cant you just make normal aero glass, and enhance it so that the only 1 active tab will be higlighted, and others will blend with window frame?

    What about this? https://s26.postimg.org/a6s3kw1g9/opera_reborn_example.jpg

  • Ariane Lu

    Small pop-up window title bar still broken on Windows 10 (like disqus login window).
    And… It’s possible to reset sidebar window to default size?

  • Mikhail Broun

    it will be great, if you will add to new reborn sidebar Viber, Vkontakte and Skype

    I am awaiting for integrated mail client from the start of the new opera)))

    sorry for my bad English, i’m a ukrainian

  • Patrick F

    what about the build in chromecast support you where talking about a while ago?
    unfortunately the extension can’t be downloaded of the chrome store anymore

  • Tratsing

    I can’t open Opera Developer again from Windows 10 64-bit taskbar. I right-click on Opera icon and after clicking on ,,New tab, ,,New window”, ,,.New private window”, nothing opens. Picture about Opera taskbar icon right-click menu is here: https://www.upload.ee/image/6781438/5.jpg

    • Ariane Lu

      Hi, i think the installer just failed during install, so this icon doesn’t work anymore. You try can download installer and reinstall to fix this.

    • Stefan Ivanović

      Rather common problem recently, at least for me. Try to repin icon to taskbar. Launcher is
      designed to avoid this as it is Launcher being pinned instead of Opera45.0.XXXopera.exe so this shouldn’t be happening at all, hope they’ll fix it soon.

      • Tratsing

        Repinning did not helped.

        • Stefan Ivanović

          Didi You managed to open Opera at all? If so then pin it again while opened. If still not working, then Ariane Lu is probably right, try reinstall.

          • Tratsing

            Opera opens fine with normal click, but from right-click menu it does not open. Previous version worked, antepenultimate also worked, but the version before antepenultimate did not worked via right-click. This bug is like a ghost.

  • Dany Gee

    Thx, great job guys! Telegram support <3!!!

    On Windows 10 64bit no issues on my side.

    However on Linux Mint 18.1 (Cinnammon) the communicators don't get minimized on the click. Once I minimize the whole browser window, then communicators get minimized to.

    • Kornelia

      Linux issue you’re describing is not a bug, but a feature.

      • Dany Gee

        Can I somehow disable this “feature”?

        • No, messengers are integrated within browsing window. If you minimize it messenger will hide as well. On the other hand you gain easy shortcut to show/hide your messenger: ctrl+shift+m (cmd+shift+m on macOS).

          • Dany Gee

            Don’t know why, but messengers don’t minimize. Hitting ctrl+shift+m opens the last used one, but does not minimize it. Only focusing on different window (or minimizing the Opera window) in the system makes messengers minimzed.

          • Arjan van Leeuwen

            That is a bug :). It’s known and will be fixed.

          • Dany Gee

            ThX! Besides, this browser is developing in a good direction, at least for now. Don’t fuck it up, pls.

          • anonym

            i think he wants to point out, that you can open a messenger windows by clicking the icon, but it wont close anymore. (neither by clicking outside nor by clicking the icon again). happens also for me

  • Stefan Ivanović

    Is this a feature or a bug? Option to open PDF files in the default PDF viewer application is listed three times, at the bottom of Browser, Websites and Privacy and Security settings sections. It was present in the previous 45.0.2522.0 Developer version as well.

    • Arjan van Leeuwen

      Bug 🙂

  • 庞佐

    We need wechat!

  • mformanu

    Regarding Ubuntu: the workaround with the libffmpeg.so file from chrome(ium) or the custom file does not work anymore. :-/ any thoughts?

    • L33t4opera

      Hi, download the opera-developer-ffmpeg-codecs package from the Herecura’s repo: 64-bit, or 32-bit version, navigate to Opera’s root folder, create a new subfolder lib_extra, extract libffmpeg.so from the package to this subfolder.

      • mformanu

        Thank you, i had done that and the videos on twitter, facebook or even treehouse are shown as playable but not working properly. sound works, but the visual playback is green/distorted, showing other parts of the website and flickering. html5test.com shows a positive at h265 and the folder is in place. something seems to be broken.

        • L33t4opera

          Try to run the Opera with the switch as follows:/usr/bin/opera-developer –disable-gpu-compositingor disable gpu acceleration completely in Settings > Browser > System > Use hardware acceleration when available – to be able to see this option, make sure to tick the checkbox on the left of “Show advanced settings” in the left side panel.

          Nevertheless, the above tips are only workarounds for the problem with the implementation of the driver for your graphic card in the browser. You can try to update it to the latest version, or revert it to the version in which this issue does not occur, or you can use one of the workarounds, and wait until it will be fixed in Chromium’s code.

          • mformanu

            This fixed it. Turned acceleration off and it works again. Totally forgot about that. Thanks for your help!

          • L33t4opera

            You’re welcome 😉

  • Anda Panda

    Can anyone tell me how i can export a HTML file ? I want to save my bookmarks as it but i didn´t find an option to do :/

  • Dmitriy

    #media-windows-mf-demuxer – enable
    Does not play music on https://vk.com/audios-6246566
    Does not play video on https://ok.ru/ooriginall
    Play video on https://vk.com/vkturksinema?z=video-83475167_456240075%2Fvideos-83475167%2Fpl_-83475167_-2

    #media-windows-mf-demuxer – disable
    Play music on https://vk.com/audios-6246566
    Play video on https://ok.ru/ooriginall
    But does not play video on https://vk.com/vkturksinema?z=video-83475167_456240075%2Fvideos-83475167%2Fpl_-83475167_-2

    • Daniel Bratell

      Thanks! We will take a look.

    • Daniel Bratell

      I forgot to ask, which version of Windows are you using? There is a problem in Windows 8/8.1 that we are fixing right now.

      • Dmitriy

        Windows 8.1 x64

        • Daniel Bratell

          We checked and it seems to be the known Windows 8/8.1 problem so it should be fixed in the next developer release.

  • Is Opera “sponsored” by facebook, whatsapp and telegram?

    If not please give me one reason why you don’t let us add whatever sites we want to the sidebar.

    • SiMcarD

      “facebook, whatsapp and telegram” aren’t “sites” but social messengers.

        • novainc

          Unless you are specifically talking about messaging sites (you didn’t specify) then the same picture might be applied to you. Opera is working to integrate the most relevant services first. They will add more later. It’s not just a matter of adding a bookmark to the sidebar.

          • I understand what they are doing, but i don’t understand why they chose to do it this way. Why not let users decide which sites they want in the sidebar and if they need messenger, whatsapp etc. they could add them themselves.

          • Leonardo Gomes

            I guess they first need to check how the sidebar and the messengers are received by the users and if they will be widely used so it would worth taking another step.

          • Nekomajin43

            No, they have to offer general solutions and let the users decide how to use them. I don’t want any softwer developer to tell me how and for what to use their product. I don’t want preselected services and spam. I want a sidebar, where I can open ANY site I want. I want a feed reader where I don’t have to see recommendations and top50 stuff. I want a feature where I don’t have to delete preadded bookmarks. They can show me suggestions, but everything MUST be opt-in.

            This is a huge problem in software developement nowadays. I don’t care which messenger they use in their office. I don’t care how they can aggregate news from around the world. I don’t care, which service they think is cool. I want a software, which I can populate with my stuff, use as I’d like. A good software has to offer features, not services.

          • novainc

            Well, that’s what the bookmarks bar is for, I think. Unless you want split view.. in which case I don’t know if there’s an extension for that. I believe vivaldi has that feature.

          • Well, that’s what the bookmarks bar is for, I think

            Seriously, you think i want to add sites to the sidebar just to open them in the main view?

          • novainc

            That’s why the “unless you want split view” part was there. It can be a feature request, but I don’t think it fits as easily as one might think with the messaging integration they’re offering now.

  • Vlad Violenty

    in left panel, when i want see site sertificate (ex. telegram, whatsapp) opera crashed.
    ubuntu 16.10 kernel 4.10

    • Kornelia

      True, it’s crashing. Thanks for the report.

  • Andrés Ruiz

    Just installed from scratch, activated whatsapp desktop notifications from sidepanel on Win10 32bit and notifications are not being shown.
    Then activated facebook messenger from same sidepannel and when entering activation code for 2-step-verification, page is cropped so not everybody could notice you need to resize or scroll to get the buttons to finish the process.

  • ArkuS

    Co teraz z paskiem bocznym rozszerzeń? Przecież dwóch nie będę miał włączonych.

    • Mikolaj Boc

      Going to be merged. Please at least use autotranslate next time so that the others can understand you.

  • hylik

    Hi I’m having problem watching live stream on twitch.tv, it’s filling my memory after 30-45 minutes I either getting a windows “Low memory” warning or the opera tab crash with “Out of memory” error
    Windows 7

  • Yes Telegram! Thanks!

    I think it is nice if we can set the order of the elements in sidebar.

  • Stefan Hofmann

    Could you make the news feed, bookmark bar and maybe other stuff stay on the sidebar instead of being in another window, like your social media apps are?

  • Ettore Lavarini

    Windows 7 32 Bit
    Opera Developer 45.0.2531.0
    Telegram OK
    Whatsapp not working (Something went wrong…)
    The webapp it’s not working too on opera developer.
    I’m always redirected to the main page (https://www.whatsapp.com/)
    On Opera 43.0.2442.1144 it’s working (https://web.whatsapp.com/)

    • Ralf Brinkmann

      You must allow cookies for WhatsApp.

      • Ettore Lavarini

        They are.
        Still “Something went wrong…” on the side app and the webapp of whatsapp not working.
        Tried to disable all the extensions too (same extensions that i use on the opera 43). Nothing.

  • Stefan Gries

    I would love to see Threema support 🙂 https://web.threema.ch

  • James ‘Sonny’ Crockett

    There is no sense in integrating these components unless the user can delete them if he so desires! Let them download them as extensions if they want them. To the rest of us, it’s aggravating bloat.

    • Leonardo Gomes

      If you mean the messengers, you can right click on the side bar and uncheck them.

    • Sebastian Kamieniarz

      Messengers are not preinstalled/integrated with the browser. This is not an extension. It is just a special kind of bookmark that does not bloat the browser in any way. If you do not want to see them, just turn them off by right-clicking on the sidebar.

      • pauloaguia

        Do you think that argument will hold when this reaches stable and people upgrading and activating the sidebar have to untick the 10 or 15 messengers that Opera will have introduced by then?
        We’re getting one messenger at a time and hardly notice it – but get a bloated sidebar as a default setting, with a bunch of messengers that people don’t use, and people will indeed complain…

        • Sebastian Kamieniarz

          I think that with more messengers, during stable release, it will be solved differently than currently on the developer stream.

        • Leonardo Gomes

          And why people would have to disable the messengers?

          • Nekomajin43

            Come on, really? How many different services do you use? One? Two? Maybe three? Will you just let them consume valuable space on the sidebar?

          • Leonardo Gomes

            Well, if they aren’t disturbing me then I would just let them there.

          • Nekomajin43

            In this case we have a very different habit. I don’t like to see what I don’t use.

      • Nekomajin43

        But it’s still bloated. These should be opt-in, not opt-out.

  • MarkG54321

    Don’t use any of these services. Google hangouts and i might be interested..

  • Eugene Galonsky

    What about Viber and Hangouts on sidebar?

  • Regnas

    Telegram…. Yay…. I love you guys….

  • kj

    On the showroom-live.com site streams become blank after a while and the only option to restore it is restart the browser. Second problem is that browser frequently crash on random things. Especialy when I try to select text editing feed from ttrss instance. First one appeared in this build, second one from the beginning of this line. Win10 x64.

    • Leonardo Gomes

      No problems in Show Room here.

      • kj

        Yep – false alarm, there was some glitch on my side with Intel HD 4600 graphics, after restarting pc everything works again.

  • Gloriam

    I love this dark theme, feels like I’m one step closer to Opera 12+ again, sidebar will take some getting used to again, but I kinda like it.

    Can’t wait to test it in Opera Beta which is currently still my daily driver for browsing, maybe after Reborn goes stable I’ll go to the stable version.

  • Andrew

    Next step… Pushbullet?

  • NanoPi

    when “Show tab previews” is enabled, hardware-accelerated H.264 video can flicker between scaling methods after switching tabs.

    this happens when I switch away from and back to a tab playing the video using the left mouse button or control+tab.

    Windows 10

    normal scaling: http://i.imgur.com/Nimz8ai.png
    other scaling: http://i.imgur.com/CZ99wnO.png
    the video was set to 144p to make the other scaling method stand out

  • SLR


    Address is harder to read compared to prod when using the light theme
    Light theme is brighter now?
    UI and icons are smaller, stopped following the Windows scaling maybe?
    Sidebar feels disconnected from the UI, on both light and dark theme
    Sidebar icons don’t show an indication to what part I’m using
    The rounded corners on the speed dials look dated

    I know this is the dev branch, and I like that you are doing a dark theme, but some of these changes are steps back IMO. I liked having a theme consistent with my OS.

  • roman61rus

    Still no opportunity to change speed-dial tiles to/for transparent custom made logo. Facebook with transparent background for example, when you can make it in photoshop and store it in a special folder in opera profile.

  • L33t4opera

    New build – Opera developer 45.0.2539.0 😉

  • Max Tony Bonkers

    Hello there,

    i can’t see the telegram icon after the update of opera. what do i do wrong

    • Max Tony Bonkers

      okay, it’s deactivated per default.