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Similar Questions

  • Cannot play flash videos in Firefox

    I am unable to play content flash facebook or CNN video. I use Firefox 31 and Flash 14.0.0.179 (32-bit) running Windows 7 Pro. I also have the 64-bit version installed for use with internet explore. These videos play fine in internet explorer but not in Firefox. Videos CNN stopped play in Firefox months ago and Facebook stopped in recent days.

    I started Firefox in safe mode, reset Firefox, uninstalled and reinstalled flash and uninstalled and reinstalled the latest version of realplayer (found this suggestion online). So far, nothing worked.

    Just CNN videos freeze once the Player control bar appears at the bottom of the frame. Advertising plays, but it hangs at the start of the video of actual news.

    Facebook displays the thumbnail for the video (no AutoPlay as it does in IE will) and when you click it you get the pop-up window with the user comments for the right, but just a black square where has to play the video.

    If I right click and go to settings for flash, when I click on disable hardware acceleration, it reactivates it as soon as I click on close on the setting screen. When I return to the parameters of the box is checked again.

    Accidents or other problems with some multimedia content in Firefox (for example, videos from Youtube and Flash animations or games) can often be solved by doing as in these Knowledge Base articles:

    On Windows Vista and above all, you can disable protected Flash mode by following the instructions on these pages:

    (See this blog post Adobe for more technical details on protected mode Flash.)

    Please tell us if it helped!

  • You Tube is not playing video on Firefox with Adobe Flash after the last update

    You Tube and other sites do not play video on Firefox with Adobe Flash after the last update for both. Adobe Flash works on other sites but not You tube and sites that can have embedded videos from You Tube, I'm not sure.

    Adobe Flash not crushed and no error message is visible. All that shows is a black screen for Flash video. Make a right click of the screen shows only a non-interactive 'a film has not loaded' and the clickable link to the home page of Adobe.

    I spent an hour trying things as suggested for past problems similar to this, but none helped.

    I sent sad face, letting you know what I think of the last update for this reason which explains pretty much the same thing, as I have said here.

    I have no other info but if I had a form any entry and queries you I might be able to provide more.

        I think the Flash 12.xx is a phantom. I can't find it on my comp. Only 13.xx shows anywhere but on the Pugins page in Firefox.

    Weird. I have no idea why it does that. Your list of details of the system shows that 13.0.r0 Flash.

       About the .Js I cannot find a User.JS in the profile folder but ther is a user.bk and other files that have.json. Should I do anything with these? 

    If you don't, that's okay. Leave all of the files.

    Does disabling HA in Flash and Firefox work better for you now or even not playing it?

    Make sure your firewall is not something Firefox blocks.

    This happens in other browsers as well?

    The site appears your version of Flash player and your operating system?

    Here is what mine looks like

  • Graphics card Radeon laptop on platform Windows 8 crashes when you watch videos in Firefox. Problem does not replicate on other browsers. Is there a solution?

    I have a 4540 of Hp ProBook with a Radeon 7 x chip video integrated of series, platform Windows 8.1. When I watch videos with the browser Firefox video adapter fails and the computer sometimes freezes. If I watch videos with another browser I don't have a problem. I went to HP and have downloaded the latest drivers from AMD but still no will. So far, the only solution is to not use Firefox when watching video clips. In short, I don't know what direction to go, and since the problem seems to be specific with Firefox, I thought I would draw your attention to the problem.

    Some additional info... If I bypass the Radeon chip, i.e. use the alternate Intel video chip, I don't have a problem. It said the native PC with Windows 7 pro with the upgrade software and the key of Windows 8. In any case when 7 was installed there where no problems with the playback of videos in Firefox. Installing Windows 8 was installed a clean place, not an upgrade...

    Thank you

    I forgot a second hardware acceleration setting, which is changed in Flash itself. See this article from Adobe technical support: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues

  • I can't watch the videos on Firefox. No problem see on Chrome. How can I fix?

    I'm used to be able to see the videos on Firefox but not now. I see them fine on Chrome.

    There is a recent problem with Adobe Flash, which can be faulty here. Please see that 11.3 Flash does not load video in Firefox . Let us know if that fixes the problem.

  • Can someone tell me how I can watch any video on Firefox without Macromedia Flash?

    OK, I don't know, but the latest version of flash player really frustrated me. I don't like Chrome was my whole life the Firefox user, but I have to go because I can't stand adobe flash plugin. I uninstalled it and after restart of Firefox automatically plays videos from youtube, but does not have the same thing in dailymotion or vimeo or other sites. Is there a solution? Please help me I love Firefox.

    Hi Raynover, although Google Chrome does not require to install Flash as a plugin, it's because the Flash is integrated. So I don't think you can really get out of Flash!

    This troubleshooting article has recent suggestions on Flash in Firefox, and I think it will be updated regularly for at least the next week or two: 11.3 Flash does not load video in Firefox.

  • Can't watch youtube videos in firefox browser

    When I try to watch any youtube video in Firefox, I get a black square where the video is meant to be. I tried solutions in the areas of appropriate assistance without success that I can not find the firefox tool button to activate javascript. I also have the latest version of the shockwave player. How can I go about fixing this problem?

    It is a problem caused by an add-on/extension installed. Recently, I helped another person to solve the same problem.

    Launch FireFox in Mode safe mode, which disables all add-on/extensions & trying to watch the same videos again. Then select just each module individually again until the problem resurfaced surface to identify the add-on causing the problem.

    See: questions to troubleshoot Firefox in Safe Mode

  • Appear only as white background videos in Firefox

    I read day and following all the leads I have found to fix this problem. When on Youtube or any other video site that uses Flash, when you select a video to watch, it shows only a white background where has to play the video. Right click in the white box, not display a dialog box, so I can not even choose the Flash settings. Because I can't go in the settings, I can't check to see if activate hardware acceleration is checked or not. If I go here, http://helpx.adobe.com/flash-player/kb/flash-player-64-bit-operating.html below:

    Flash drive information

    If Flash Player is installed on your browser, the following box shows the version of Flash Player and your operating system. If Flash Player is not installed, you receive an error message.

    What I see is an empty area.


    When I had the problem to fix, this laptop was running 20 Firefox and Flash Player 14. I upgraded to Firefox 28.0 and a clean install of FP 14, no change. I uninstalled and reinstalled Flash according to the stricter guidelines. I even dug up an old version and tried, but no joy. I have the exact same configuration running on other machines, and they play videos, although on one in particular, Flash Player crash more I want. I digress... my specs are the following:


    Windows 7 Home Premium 64-bit

    Firefox 28.0.1

    Flash Player 14.0 (latest version as of 28/07/2014


    If Flash is installed, it only works in Internet Explorer. If I uninstall Flash, videos Youtube will play in IE and Firefox, using the HTML5 versions automatically. Once FP is installed, I can not play video in Firefox, and IE uses Flash Player as if nothing is wrong.


    Help, please!

    I try to not not sellers by name in public forums, but Comodo is one of the frequent offenders.  They try to intercept the communication between Flash and Firefox, that fires our security protections and causes the Flash and Firefox to be unable to communicate.

    You can try to stop the Comodo, but I don't think that will do.  It's easy, then you might as well try it first.  Make sure that Comodo is not running and restart Firefox.  If this does not work, try to uninstall Comodo completely, restart, and there's a pretty good chance that Firefox will start magically work again.

    You have any other things of privacy / security at stake?

  • How can I disable autoplay video on Firefox on my phone?

    I open tabs on Firefox on my phone and video autoplays in tabs in the background. I have no data unlimited, and I don't like him screaming audio suddenly when I am trying to be discreet.
    Is it possible to stop this?
    Other this question, I like firefox.
    Thanks in advance for your help.

    On 41 of Firefox that will allow us to release next Tuesday, you can use an option in the settings to disable automatic playback of the video.

    • Firefox 3 dot the menu or the menu button on the phone
    • Parameters
    • view
    • Uncheck the box next to allow autoplay
  • How can I get rid of this suspicious popup: 'your video player Firefox must be updated. Last version released: 12 September 2015 "?"

    I believe that I have a piece of malware affecting firefox. I frequently get a popup, allegedly from Mozilla, saying: Your Firefox video player needs to be updated. Latest published version: [today].
    Malwarebytes didn't find anything. Trend Micro is nothing. I can't find anything. Can you offer any help.

    If you are interested to try other free malware scanners, here's a list:

    However, I suspect that the problem may be caused by one of your addons. I think that maybe it's the MediaPlayer 3.3.2 available to you.

    Try Firefox Safe mode to see if the problem goes away. Safe mode is a troubleshooting mode that temporarily disables hardware acceleration, restores some settings and disables add-ons (extensions and themes).

    More information on the use of safe mode can be found here:

  • Adobe Flash Player update. Why I don't see tube you videos with Firefox?

    I had this problem for a week now. I can hear the videos but not see images. I went into plugins and update of Adobe Flash Player, but it did not help. Restarted, etc. To return to the form on the page that it is said still Adobe reader must be updated on my windows xp, Adobe said it is up to date. Perhaps this is related to why I can't watch the videos?

    From Firefox 40, YouTube uses many Windows XP users another drive, the HTML5 player. In order to confirm what player is used on the page, you can right click on the video and check the last line of the quick menu (context menu) that appears. (If the menu of Firefox crashes, press and release the Alt key to display the menu of the player.)

    Assuming you get the menu black having HTML5 in the last line, that's your problem. So... what to do about it. Here are two possible solutions:

    (1) use an add-on to force YouTube to serve you the Flash Player

    There are at least two extensions to do this, you only need:

    (2) use an add-on to tell YouTube that you're still under Firefox 39

    (A) install the https://addons.mozilla.org/firefox/addon/ua-site-switch/ extension which certainly has a confusing interface.

    (B) select and copy the old identification of user agent for Firefox 39:

    Mozilla/5.0 (Windows NT 5.1; rv:39.0) Gecko/20100101 Firefox/39.0

    (C) while on a youtube.com page, click on the small triangle of drop down menu to au-site-switch and paste the old and then user agent string press ENTER to save it

    (D) may reload YouTube without going through files cached (Ctrl + Shift + r)

    E repeat B & C on https://www.youtube-nocookie.com/ to apply the hack for embedded videos

  • Videos in Firefox always low however

    On YouTube and other video sites, videos are always much lower then in Internet Explorer and Chrome.

    An animation I made is a good example of this: https://www.youtube.com/watch?v=0OlrLzNj4z0

    In Firefox, the contrast is too low... or black is bleached, I don't know the English words just for her.

    But the same video in Internet Explorer is such that it is supposed to be, it's show as the original on my PC. And both are in HTML5 mode.

    This is not only on my PC (8.1 Windows 64-bit): at work, I see the same behavior too on Windows 7 64 bit.

    I hope that it is hoping to fix soon?

    I just discover the cause: when I turn off 'Use hardware acceleration when available' videos are great. When I active that I restart Firefox, then everything is as I described it: bleached, less dynamic, less contrast.

    Curious now what material Firefox uses to "accelerate": CPU, GPU or both?

  • Cannot watch Netflix videos using Firefox 30.0, previous ok and IE versions still work

    Starting this week (and I do not know what past except perhaps my update to the latest version of Firefox), I can watch more videos on Netflix is using Firefox on my Windows 7 PC.

    I use Firefox 30.0 and Silverlight 5.1.30214.0 and under modules I set to always enable Silverlight. I also deleted cache and cookies because I saw this as a troubleshooting option.

    The most unusual thing is, I get no error message, just a WHITE screen empty. When I click on a movie on Netflix.com to watch, it brings up a blank white screen with a small gray square teeny centered at the top of the screen and the weirdest part is that the AUDIO of the film works... so I HEAR everything, but don't see anything. I have tried several different programs of television and movies, and in this case for all.

    Meanwhile, on the same PC, at the same time, I'm still able to watch movies on Netflix by using Internet Explorer (I have version 10 - something). But I prefer Firefox. Hoping someone can help solve this mystery!

    Hmmm... I don't see anything.

    Well, this. go to your add-ons Manager and disable several of them.
    Restart Firefox and try it on Netflix. If there is still a problem, turn off some
    more. When FF is running without problems, you have the reduced.
    Reactivate the last group one by one until the problem returns.

  • My WEB sites cannot read MP4 videos in Firefox

    My websites (created by DreamWeaver CC v.13.2) include videos MP4, but Firefox cannot open them, message "cannot play the video, the file is corrupted" is displayed. Same videos work fine in Explorer (open in Media Player, which is the default program for MP4 videos) or directly in Media Player. Version of Firefox is the last 29.0.1. What's wrong?

    https://support.Mozilla.org/en-us/Que.../1000712#answer-575386

  • Can't play m4v videos in Firefox.

    Hello. I was hoping that someone could help me with a problem. I have a html presentation for a class that I teach. (I have created the presentation.) It includes m4v videos and I can not play in Firefox. He said: "no video with format supported and MIME the type found. I can play the videos if I open them outside, but I need to work in the presentation. Help, please. Thank you.

    Firefox can not read files with the file extension .m4v via audio or video tag that those are not supported file extensions. You can only read these files via the object tag to use a plugin that supports this file Firefox extension. You can force it to use a specific plugin by specifying a type (type = "application/x-mplayer2").

    <object data="file://<path to file>" type="<to force a specific plugin>"></object>

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