HTML 5 videos (like Vine) won't play

Some HTML5 videos won't play in my Firefox browser.
This vine for example (https://vine.co/v/b3v5h3Piwt7) only shows up as a static image. I can click the mute/audio button though, but it won't play. When I look at the webconsole when I load the page then 2 javascript warnings show up,
the first one say that the Mediasource [long url here] can't be encoded
and another one says loading of all candidate sources failed. loading media paused.
I'm using Firefox 21.0 and I tried to run Firefox in safe mode with disabled add-ons, and I also tried to reinstall it, but without success.
Thanks in advance.

Thanks, Cor-El, but which part of my Problem Description was not clear to you? All those things and a great many more were tried and FAILED.
It is CLEARLY a new BUG that only appeared in the latest release or two of FireFox and SeaMonkey. It has absolutely nothing to do with AdBlock or anything else, unless the latest releases don't work with those add-ons. All add-ons were disabled to no effect. It has NOTHING to do with Cookies or Cache. I thought I was very meticulously clear about that, in the the Is / Is Not Differential Diagnosis description.
Please don't keep repeating the same ineffective "solutions". They do not work. It is a BUG in the latest, base FireFox and SeaMonkey releases. The problem goes away with earlier releases. It needs to be fixed.

Similar Messages

  • How do I fix? Flash videos like YouTube won't play sound on MAC OSX 10.5.8

    Sound won't play on YouTube and other flash web based videos on my MAC OSX 10.5.8 So I installed the most recent version of Adobe Flash Player and it still doesn't work. I uninstalled and reinstalled adobe flash player. Nada. I updated my computer software and firmware. Still nothing. I checked my sound and apple movie trailers play just fine.  Please assist.
    Thanks so much!!!!
    Oh, I have tried to play videos in both Safari and Firefox. No sound in both.

    Yay!!!! My business partner @goodbadtech (on twitter) fixed it.  Apple repair fixed it. Just got it back this morning. Then I updated Adobe flash as Mozilla asked me to do and the sounds disappeared again! Was so frustrated.  But Spencer found this link and that saved the day :-)
    http://www.tuesdaynight.org/2008/10/28/downgrading-to-flash-9-for-mac-os-x.html
    Hope this helps any of your with the same technical difficulties.

  • Flash video (like CNN) won't play after upgrade to 9.0.1

    Cannot get any Flash video to play after 9.0.1 upgrade, i.e., CNN

    Perform the suggestions mentioned in the following articles:
    * [https://support.mozilla.com/en-US/kb/Template:clearCookiesCache/ Clear Cookies & Cache]
    * [[Troubleshooting extensions and themes]]
    Check and tell if its working.
    May not be related to your problem but some of your Firefox Plugins are out-dated
    * Update All your Firefox Plugins -> [https://www.mozilla.org/en-US/plugincheck/]
    * '''When Downloading Plugins Update setup files, Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, Google Chrome, etc.)'''

  • I have an iPod nano 6th generation and I downloaded 3 music videos but they won't play on my iPod. They only play on my laptop/iTunes. How can I get it to work?

    I have an iPod nano 6th generation and I downloaded 3 music videos but they won't play on my iPod. They only play on my laptop/iTunes. How can I get it to work? I know that my iPod should take music videos because there is a pre-made playlist called "Music videos". Can anyone help me please????

    You can sync the music videos, but they won't play on your 6G Nano, because it does not support video playback. Sorry.
    B-rock

  • Video on YouTube won't play !

    Video on YouTube won’t play Until I refresh the page? However, when the video ends okay then can not play the video again? Video plays only once then had to refresh the page in order to watch the same video?

    Hi G-hot, were you able to solve your other issues with Youtube from your earlier thread, or is this an additional problem with Youtube? I think if you could list all the problem in one list it might be helpful.
    [https://support.mozilla.org/questions/971257 Firefox 23.0.1 keeps loading the YouTube page and prevents access to My Profile]
    Also, did you do the usual?
    When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.
    (1) Bypass Firefox's Cache
    Use Ctrl+Shift+r to reload the page fresh from the server.
    Alternately, you also can clear Firefox's cache completely using:
    orange Firefox button (or Tools menu) > Options > Advanced
    On the Network mini-tab > Cached Web Content : "Clear Now"
    If you have a large hard drive, this might take a few minutes.
    (2) Remove the site's cookies (save any pending work first on Youtube and Gmail). While viewing a page on the site, try either:
    * right-click and choose View Page Info > Security > "View Cookies"
    * Alt+t (open the classic Tools menu) > Page Info > Security > "View Cookies"
    In the dialog that opens, you can remove the site's cookies individually.
    Then change the site at the top from youtube.com to google.com and clear those as well.
    Then try reloading the page. Does that help?

  • Vines won't play in my FF35, 36, 37.

    Updates didn't change anything. Clips appear to load but they won't play, all I can see is just static image. Main options like:
    media.mediasource.mp4.enabled
    media.fragmented-mp4.enabled
    media.fragmented-mp4.exposed
    media.windows-media-foundation.enabled
    Are set to "true". Nothing is happening.

    I don't really understand Vine... On Windows 7 with nothing disabled, I get a video tag with this src attribute. If you paste copy/paste this into the address bar and press Enter, does it play?
    '''blob:'''https://vine''.''co/891440a8-491e-43ce-86c4-1423f089a996
    For me, it works with blob at the beginning and not without it. This could be a post-XP thing.
    Could you try this old workaround: click the faint stack of 3 dots above the video "poster" image and choose Embed. This should open that particular video's page with the embed viewer overlaid. This viewer uses an older syntax (doesn't use blob) that hopefully will still work in XP.
    But... the extra steps are a hassle so hopefully another workaround will be found.

  • Since updating to 7, videos and movies won't play

    I just uploaded the latest version of iTunes. Since doing so yesterday, the videos and movies I had in my Library won't play. I get the sound, but all I get for a picture is colors. Anyone know how to debug? How do I get to view my videos again?
    Thanks

    First thing to check would be system requirements,
    Right click on My Computer click on Properties,
    Near the bottom it will say what processor and Ram are.
    For all video to play properly iTunes / Quicktime requires 2.0+ GHz Pentium Class processor and 512MB Ram and 32MB Video Ram.
    If you do meet the system requirements, You may want to try uninstalling / reinstalling Quicktime.
    Start...Control Panel...Add Remove Programs
    Remove Quicktime
    Open My Computer
    Browse to c:\Program Files\ and delete the Quicktime folder.
    Go to http://www.apple.com/quicktime/download/win.html and make sure that QuickTime 7.1.3 for Windows 2000/XP is selected.
    Download and install, After install, restart and test.
    Hope that works.

  • Battery died while importing iPhoto video thumbnails, project won't play

    I had recently added some new videos from my digital camera to iPhoto. Opening iMovie, it prompts to create thumbnails. I said yes and it said it would take about 15 minutes. My battery was low, but it looked like it would finish fine. I came back a few minutes later and the computer was off.
    When I powered up again to charge, the iMovie thumbnail processing window was still up but hadn't finished. It appeared to have finished. The problem is that now a project I had completed a month ago won't play back properly. The thumbnails have a little yellow exclamation mark and flicker on/off gray. Trying to play the video usually crashes iMovie now, and it only plays back in short spurts.
    My project appears to be corrupt or something. Is there a way to recover? Can I delete bad thumbnails from somewhere through Finder?

    Have you tried the Bridge forum?
    Bridge General Discussion

  • While in imovie, when working on a project, I can NOT view the project in the right hand screen. I have made several videos and it has always worked before. I am not able to edit the videos because they won't play in the right hand screen.

    The videos that I import (and are located on the bottom of imovie) will show up and play on the right hand screen. But if I move that clip to the actually project area it won't play in the right hand side! I somehow must have clicked something that now won't play the project videos and now plays the clips below instead! Help please I need to fix this! Everythign else works, I can still edit videos, add transitions, music, etc I just can't see it on the right hand side- so I can't edit because I can't see

    See my post here on how to do this.
    https://discussions.apple.com/docs/DOC-4141

  • Video from iPhone won't play on iPad

    I received a video from iPhone in an email but iPad won't play it? Any way to get it to play on iPad.

    I appreciate what you are both saying -- but it is not the music that is the problem.  The video itself is NOT blocked - you can view it on a computer -- but when you try to view it on ipad/iphone the message says, "not available on this platform".  Here is a link to a video I did in Elements 9 on Tuesday:
    http://youtu.be/06TaM22SkdE
    Here is the link to the video done last night in 11:
    http://youtu.be/h353KBGkodU
    The "raw files" are both adobe flash.flv -- it's just not making sense...
    Thank you!!!

  • Video on website won't play

    web site videos that play on my ipad, ipod, acer tablet and windows pc won't play on my new macbook pro retina.  did i accidently set something that prohibits display?
    i'm new to mac

    Never mind.  I needed adobe flash player and had not installed it yet.

  • Video says it won't play on iphone 4s

    bought and downlaoded hd video to my itunes library. Go to move it to my Iphone 4s and get message saying it won't play on this iphone.

    Try resetting all settings/ restore the phone. But be sure to backup. These steps are the usual resolutions. I don't really know anything else that would solve this issue. I'm trying to look for an article for this but it didn't help. Maybe you can try searching youtube forums.

  • Video player - iPad won't play! Help?

    HHi, my i player won't play, nothing will not play all of a sudden? Any solutions greatly appreciated! Thanks jo

    Try closing the Videos App and reset the iPad.
    In order to close apps, you have to drag the app up from the multitasking display. Double tap the home button and you will see apps lined up going left to right across the screen. Swipe to get to the app that you want to close and then swipe "up" on the app preview thumbnail to close it.
    Next, reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider if it appears on the screen - let go of the buttons. Let the iPad start up.

  • Video clip previews won't play.

    Videos won't play in Adobe Premiere Elements 10, but play fine in other programs on my computer. I've tried rendering it, installing a new hard drive for scratch disk, and saving the file in different locations. Once when I applied video merge to a clip, it played. I am editing videos blindly and can't take advantage of most of the features of the program. It's really frustrating. Any ideas?

    adelante
    What is the video card/graphics card that your computer with Premiere Elements 10 uses?
    If it is NVIDIA GeForce, then you have the well known and documented Premiere Elements 10/NVIDIA GeForce issue which is remedied by rolling back
    the driver version to about May 2013. Please review the following
    ATR Premiere Elements Troubleshooting: PE10: NVIDIA Video Card Driver Roll Back
    as well as  the Announcement on this matter at the top of this forum.
    Basically you will need to plug your information into the following NVIDIA fields to determine if there is a driver version for your card that is old enough to be used.
    NVIDIA Driver Downloads - Advanced Search
    If you are a Windows 8 or 8.1 64 bit user, you will probably find that old enough drivers do not exist for you. Then non NVIDIA GeForce card or Premiere Elements 11, 12, or 13.
    Please review and consider if any of the above applies to you. If not, then we will explore alternative troubleshooting.
    Thank you.
    ATR

  • Video in iMovie won't play.

    I have edited an entire almost 45 minute long iMovie, but when I play it, certain videos I added and edited won't play, and the screen will stay on the picture that was shown before the video. How do I fix this?

    I too have this problem, includes when i add cutaways - the original video freezes and the cutaway never comes up.

Maybe you are looking for