Firefox 9 : html5 video on youtube

Cannot view any short (like less than a minute) html5 videos on youtube. First it doesn't automatically play, then if i hit the play button, it loads forever and doesn't play anything.

I can't remember which video. I haven't watched youtube much but I just did a little testing and it looks fine for now, maybe the lastest update fixed it.
I will post you the vid when I encounter the problem again. Thanks!

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  • [SOLVED] Epiphany: Some videos of Youtube do not reproduce (html5).

    Hello, I have activated the option to see videos of Youtube using HTML5, with the browser ephipany (and with firefox) some videos can reproduce , instead, others do not reproduce, says in the screen of the video "Missing Plug-In" and afterwards "This video is currently Unavailable". I have installed the plugins of Gstreamer, but the problem persists.
    In the screen of activation of HTML5 says: What does my browser support?
    - Video tag
    - h.264
    - WebM
    These are the results of the HTML5 test
    your browser scores
    305
    AND 14 BONUS POINTS
    out of a total of 475 points
    You are using Epiphany 3.2.1 on LinuxCorrect?✔✘
    Parsing rules
    2 bonus points11
    <!DOCTYPE html> triggers standards mode    Yes ✔
    HTML5 tokenizer    Yes ✔
    HTML5 tree building    Yes ✔
    HTML5 defines rules for embedding SVG and MathML inside a regular HTML document. Support for SVG and MathML is not required though, so bonus points are awarded if your browser supports embedding these two technologies.   
    SVG in text/html    Yes ✔
    MathML in text/html    Yes ✔
    Canvas
    20
    canvas element    Yes ✔
    2D context    Yes ✔
    Text    Yes ✔
    Video
    8 bonus points21/31
    video element    Yes ✔
    Subtitle support    No ✘
    Poster image support    Yes ✔
    The following tests go beyond the requirements of the HTML5 specification and are not counted towards the total score. If browser support for one or more video codecs is detected, two bonus points are awarded for each codec.   
    MPEG-4 support    Yes ✔
    H.264 support    Yes ✔
    Ogg Theora support    Yes ✔
    WebM support    Yes ✔
    Audio
    4 bonus points20
    audio element    Yes ✔
    The following tests go beyond the requirements of the HTML5 specification and are not counted towards the total score. If browser support for one or more audio codecs is detected, one bonus point is awarded for each codec.   
    PCM audio support    Yes ✔
    MP3 support    Yes ✔
    AAC support    Yes ✔
    Ogg Vorbis support    Yes ✔
    WebM support    No ✘
    Elements
    22/29
    Embedding custom non-visible data    Yes ✔
    New or modified elements   
    Section elements    Yes ✔
    Grouping content elements    Partial ○
    Text-level semantic elements    Partial ○
    Interactive elements    Partial ○
    Global attributes or methods   
    hidden attribute    Yes ✔
    Dynamic markup insertion    Yes ✔
    Forms
    64/100
    Field types   
    input type=text    Yes ✔
    input type=search    Yes ✔
    input type=tel    Yes ✔
    input type=url    Yes ✔
    input type=email    Yes ✔
    input type=datetime    Partial ○
    input type=date    Partial ○
    input type=month    Partial ○
    input type=week    Partial ○
    input type=time    Partial ○
    input type=datetime-local    Partial ○
    input type=number    Yes ✔
    input type=range    Yes ✔
    input type=color    No ✘
    input type=checkbox    Yes ✔
    input type=image    Partial ○
    textarea    Partial ○
    select    Yes ✔
    fieldset    Partial ○
    datalist    Partial ○
    keygen    Yes ✔
    output    Yes ✔
    progress    Yes ✔
    meter    Yes ✔
    Fields   
    Field validation    Yes ✔
    Association of controls and forms    Yes ✔
    Other attributes    Partial ○
    CSS selectors    Yes ✔
    Events    Yes ✔
    Forms   
    Form validation    Yes ✔
    User interaction
    34/36
    Drag and drop   
    Attributes    Partial ○
    Events    Yes ✔
    HTML editing   
    Editing elements    Yes ✔
    Editing documents    Yes ✔
    APIs    Yes ✔
    History and navigation
    5
    Session history    Yes ✔
    Microdata
    0/15
    Microdata    No ✘
    Web applications
    15/20
    Application Cache    Yes ✔
    Custom scheme handlers    No ✘
    Custom content handlers    No ✘
    Custom search providers    No ✘
    Security
    5/10
    Sandboxed iframe    Yes ✔
    Seamless iframe    No ✘
    Related specifications
    Geolocation
    0/15
    Geolocation    No ✘
    WebGL
    10/25
    3D context    No ✘
    Native binary data    Yes ✔
    Communication
    32/36
    Cross-document messaging    Yes ✔
    Server-Sent Events    Yes ✔
    XMLHttpRequest Level 2    Partial ○
    WebSocket    Yes ✔
    Files
    10/20
    FileReader API    Yes ✔
    FileSystem API    No ✘
    Storage
    15/20
    Session Storage    Yes ✔
    Local Storage    Yes ✔
    IndexedDB    No ✘
    The Web SQL Database specification is no longer being updated and has been replaced by IndexedDB. Because at least 3 vendors have shipped implementations of this specification we still include it in this test.   
    Web SQL Database    Yes ✔
    Workers
    15
    Web Workers    Yes ✔
    Shared Workers    Yes ✔
    Local multimedia
    0/20
    Access the webcam    No ✘
    Notifications
    0/10
    Web Notifications    No ✘
    Other
    6/8
    Page Visibility    No ✘
    Text selection    Yes ✔
    Scroll into view    Yes ✔
    Experimental
    Audio
    0/7
    Web Audio API    No ✘
    Audio Data API    No ✘
    Animation
    0/2
    window.requestAnimationFrame    No ✘
    I do not know if this problem is caused by Epiphany, or because it is missing to install some package of Archlinux, would appreciate his answer, thank you in advance.
    Sorry for my English
    Last edited by Infragilis (2012-03-15 15:32:52)

    As it signalled the page of Youtube, expected this answer, but like my knowledge in this matter is scarce, had to ensure me that the problem was not the browser or the absence of a package.
    Thank you for answering

  • How firefox play video in youtube?

    if not installed flash player, how firefox play video in youtube?

    Unfortunately not all HTML5 videos work in Firefox, so you may still need the Flash player.
    You can find the 32 bit version of the Flash Player installer for a 32 bit Firefox version here (scroll down to Flash Player (32 bit)):
    * http://www.adobe.com/special/products/flashplayer/fp_distribution3.html

  • Firefox 15, Flash 11.4, Windows 7 - html5 videos/swf do not play

    Help me please!  I see that many people have similar issues, but no 2 are exactly alike, but I have tried every suggested solution and nothing seems to work.  Everything was fine until about 2 weeks ago and then nothing worked - no youtube, no flash apps, no swf.  I only use Firefox, but I tried it on IE and Chrome - nothing.  I really just want a solution with Firefox, because it has worked.  In my Add-ons Manager, it shows Shockwave Flash 11.4...and Shockwave for Director.  HOWEVER, when they are enabled I cannot watch ANY youtube videos.  If I disable Shockwave Flash, youtube videos play, except for HTML5 videos.  Regardless if Flash is enabled or disabled, when I go to the Adobe flash test page, it is indicating that I do not have flash installed.  However the Shockwave Player test page, shows that shockwave is installed and working.  I am so frustrated....I have uninstalled and installed so many times, shockwave, adobe, etc. And no matter what I do .swf images/apps do not play at all.  This is the worse, since my work's website (which I maintain) uses .swf.  I did not create them, but would like to see them and it seems to necessary when I try to update the website, because the website maintenance hangs.  Flash never 'crashes'.....

    Here's the report, just with the display device info - let me know if you need anything else (it's really long!)
    System Information
    Time of this report: 9/18/2012, 17:22:42
           Machine name: AM-LAPTOP
       Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120503-2030)
               Language: English (Regional Setting: English)
    System Manufacturer: Dell Inc.
           System Model: Inspiron N5050
                   BIOS: BIOS Date: 10/14/11 14:44:39 Ver: 04.06.04
              Processor: Intel(R) Core(TM) i3-2350M CPU @ 2.30GHz (4 CPUs), ~2.3GHz
                 Memory: 4096MB RAM
    Available OS Memory: 4004MB RAM
              Page File: 3162MB used, 4844MB available
            Windows Dir: C:\windows
        DirectX Version: DirectX 11
    DX Setup Parameters: Not found
       User DPI Setting: Using System DPI
    System DPI Setting: 96 DPI (100 percent)
        DWM DPI Scaling: Disabled
         DxDiag Version: 6.01.7601.17514 32bit Unicode
    DxDiag Notes
          Display Tab 1: No problems found.
            Sound Tab 1: No problems found.
            Sound Tab 2: No problems found.
              Input Tab: No problems found.
    DirectX Debug Levels
    Direct3D:    0/4 (retail)
    DirectDraw:  0/4 (retail)
    DirectInput: 0/5 (retail)
    DirectMusic: 0/5 (retail)
    DirectPlay:  0/9 (retail)
    DirectSound: 0/5 (retail)
    DirectShow:  0/6 (retail)
    Display Devices
              Card name: Intel(R) HD Graphics Family
           Manufacturer: Intel Corporation
              Chip type: Intel(R) HD Graphics Family
               DAC type: Internal
             Device Key: Enum\PCI\VEN_8086&DEV_0116&SUBSYS_05041028&REV_09
         Display Memory: 1696 MB
       Dedicated Memory: 64 MB
          Shared Memory: 1632 MB
           Current Mode: 1366 x 768 (32 bit) (60Hz)
           Monitor Name: Generic PnP Monitor
          Monitor Model: unknown
             Monitor Id: SEC5441
            Native Mode: 1366 x 768(p) (59.997Hz)
            Output Type: Internal
            Driver Name: igdumd64.dll,igd10umd64.dll,igd10umd64.dll,igdumdx32,igd10umd32,igd10umd32
    Driver File Version: 8.15.0010.2342 (English)
         Driver Version: 8.15.10.2342
            DDI Version: 10.1
           Driver Model: WDDM 1.1
      Driver Attributes: Final Retail
       Driver Date/Size: 3/25/2011 22:17:46, 7473664 bytes
            WHQL Logo'd: Yes
        WHQL Date Stamp:
      Device Identifier: {D7B78E66-4256-11CF-BE7A-0E25A9C2C535}
              Vendor ID: 0x8086
              Device ID: 0x0116
              SubSys ID: 0x05041028
            Revision ID: 0x0009
    Driver Strong Name: oem3.inf:Intel.Mfg.NTamd64:iSNBM0:8.15.10.2342:pci\ven_8086&dev_0116&subsys_05041028
         Rank Of Driver: 00E60001
            Video Accel: ModeMPEG2_A ModeMPEG2_C ModeWMV9_C ModeVC1_C
       Deinterlace Caps: {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(YV12,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YV12,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YV12,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(NV12,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(NV12,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(IMC1,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC1,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC1,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(IMC2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(IMC3,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC3,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC3,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
                         {BF752EF6-8CC4-457A-BE1B-08BD1CAEEE9F}: Format(In/Out)=(IMC4,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_EdgeFiltering
                         {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC4,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend DeinterlaceTech_BOBVerticalStretch
                         {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC4,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY VideoProcess_AlphaBlend
           D3D9 Overlay: Supported
                DXVA-HD: Supported
           DDraw Status: Enabled
             D3D Status: Enabled
             AGP Status: Enabled

  • Yuotube HTML5 videos won't play on Firefox

    I can't play Youtube HTML5 videos in Firefox, although I can in Safari. I just see a blank black rectangle, and nothing plays. No picture, no sound.
    I have Firefox 3.0 and OS 10.9.3.
    The add-ons I have running are:
    adblock plus 2.6.4
    autofil 3.6
    autopager 0.9.0.10
    classic theme restorer 1.2.1
    colorful tabs 24.3
    fastest fox 5.2.1
    flagfox 5.0.5
    flashblock 1.1.17
    forecastfox 2.2.4
    foxclocks 3.4.14
    foxtab 1.4.9
    image zoom 0.6.3
    last pass 3.1.1
    no squint 2.1.0
    pdf download 3.0.0.2
    pocket 3.0.5
    troubleshooter 1.1a
    userzoom survey tool 5.2.2.21
    wot 20131119
    xmarks 4.3.1
    youtube mp3 podcaster 3.3.4

    If you use extensions (Firefox/Tools > Add-ons > Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure that such extensions aren't blocking content.
    Clear the cache and cookies only from websites that cause problems.
    "Clear the Cache":
    *Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
    "Remove Cookies" from sites causing problems:
    *Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"
    Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
    *Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
    *Do NOT click the Reset button on the Safe Mode start window
    *https://support.mozilla.org/kb/Safe+Mode
    *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

  • Html5 videos: video periodically freezes while audio continues to play. Firefox 12, Linux, Centos 5 up to date.

    whenever I view a YouTube video on my linux box (Centos 5.8, fully updated) using Firefox12, YouTube always delivers the html5 video to me instead of Flash. This would be fine, but intermittently the video stops moving (while the audio keeps playing). I click the (I don't know what it's called) slider for the current position and the video will start moving again. until it pauses next time, anywhere from a few seconds to a few minutes.
    I don't know why it delivers html5 instead of flash, on my laptop using centos 6 and firefox12 I get flash video. Is there someway to configure Firefox to get flash instead? If not, I'd appreciate help in fixing the pausing video component.

    Perform the suggestions mentioned in the following articles:
    * [https://support.mozilla.com/en-US/kb/Template:clearCookiesCache Clear Cookies & Cache]
    * [[How to clear the cache#w_clear-the-cache|Clear the Network Cache]]
    Check and tell if its working.
    IF it still doesn't work, then Start Firefox in -> [[Safe Mode]] to check if your add-ons/extensions are causing the problems.
    * Also see this article -> [[Troubleshooting extensions and themes]]
    Check and tell if its working normally while using Firefox in [[Safe Mode]].
    You can also try to clear the Flash cookies as mentioned in the following articles:
    # Flash Website Storage Settings panel:
    #* http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html
    # Global Storage Settings Panel:
    #* http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html
    # Flash Local storage settings Help:
    #* http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html

  • Does FireFox v8 plays HTML5 video without any setting?

    '''This''' HTML5 video can played in my chrome and IE9 browser at same computer, but Firefox v8.0.1 can not play.
    http://my.opera.com/ODIN/blog/2011/11/04/opera-tech-break-html5-with-bruce-and-zi-bin
    '''Did''' I missing any setting or some extensions? I try to install .H264 extensions for Firefox v7 from Microsoft, but it not suitable for v8.

    Recent crashes of certain multimedia contents (this includes Youtube videos, certain flash games and other applications) in conjunction with Firefox are most probably caused by a recent Flash update and/or a malfunctioning browser plugin such as Real Player.
    In order to remedy the problem, please perform the steps mentioned in these Knowledge Base articles:
    * [[Flash Plugin - Keep it up to date and troubleshoot problems | Flash Plugin - Keep it up to date and troubleshoot problems.]]
    * [[Flash 11.3 crashes | Flash Crashes]]
    * [[Flash 11.3 doesn't load video in Firefox | Flash doesn't load video in Firefox]]
    * http://kb.mozillazine.org/Flash
    Other, more technical information about these issues can be found under these Links:
    * http://forums.adobe.com/thread/1018071?tstart=0
    * http://blogs.adobe.com/asset/2012/06/inside-flash-player-protected-mode-for-firefox.html
    * http://forums.adobe.com/thread/695860
    Please tell us if this helped!

  • [SOLVED] Greenscreen in Firefox when playing HTML5 Videos

    Hi! I don't think someone had this question before, google doesn't give me any good answers either. Move if this is the wrong section.
    When I play HTML5 Videos like the Youtube HTML5 player I get a greenscreen, but I get sound.
    Any info you need to know ? Just say it and I'll deliver.
    Last edited by heldiho53 (2014-12-03 20:29:29)

    skip wrote:I just upgraded to Firefox 34.0.5 and video stopped completely working on Youtube, with audio only on Vimeo. Downgraded back to 33 and works fine. Anyone else having the same issues?
    dice wrote:Right after the upgrade I had problems with youtube too. Video was not loading not even the player showed up. But after reboot everything was fine. Did you try that already?
    I am facing the same problem. Rebooting didn't help. Downgrading though works.
    Last edited by theodore (2014-12-02 15:33:27)

  • I have Mac pro and firefox 3.0.19.I am trying to download a video from youtube.? I can see the video. I want to download it and save in my computer to see it again. I have download helper. While the 3 red,blue,and yellow sphere are turning, It gives me t

    I have mac pro and firefox 3.0.19
    I am trying to download a video from youtube.?
    I can see the video. I want to download it and save in my computer to see it again.
    I have download helper. While the 3 red,blue,and yellow sphere are turning, It gives me the choice of place to save,and when I click and choose desktop , for example, this message comes ."Conversion requires an external application that appears to be missing on your system. Configure conversion ?
    When I click on okay, another page comes, which says" converter and a box next to it . in the box is written FFMpeg. but I can change it to MEncoder. In another box, says configure conversion rules. When I click on it, nothing happen.Thanks for your help.
    == This happened ==
    Every time Firefox opened
    == I want to download a video from youtube

    No, this reply is not helpful. It simply generates this little gem:
    "This service requires the conversion feature to be enabled.
    Configure conversion ?"
    And the same clicking on buttons that makes nothing happen and going around in circles with the escape key.

  • UPDATE - What does it take to get Firefox 28 to play videos on YouTube?

    Searching support for two nights has led me to an answer because the help is outdated. I have been unable to find support for Firefox 28.
    YouTube videos will not play using Firefox on my new desktop computer. I downloaded Flash player (version 12 something) using Firefox 28 after YouTube told me I needed it. After doing that, videos would play for a few seconds, then a message would appear telling the video would not play with a "Learn More" link. The help was too vague to help.
    I have Windows 7 Home Professional, security software, etc.
    I have uninstalled the Flash plugin until I get a better handle of what I need to know to better troubleshoot this. YouTube videos will play when I use IE 11 without downloading a plugin.
    Thanks you in advance.

    Thank you for the replies.
    While I still have Firefox 28 installed, I have NOT re-installed Flash plugin. And guess what, videos on YouTube play just fine, for now, in Firefox. They also play well in my other browsers, too.
    If I do ever download and install Flash plugin again, I will refer to the the replies I have received here.
    If anyone else has any insight on my post, please post a reply.
    Thanks again for the replies.

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