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Firefox error: video format or MME type is not supported

Client said that video cannot load on firefox except other browsers. It shows "Video format or MIME type is not supported". Firefox version is 33.0.3. Video is mp4 forma… (ulteriori informazioni)

Client said that video cannot load on firefox except other browsers. It shows "Video format or MIME type is not supported". Firefox version is 33.0.3. Video is mp4 format.

Chiesto da Myat 6 anni fa

Risposta di Myat 6 anni fa

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Issue with video picture/sound "sync" in Firefox 37.0.1.

So I have been using Firefox to watch various videos on my PC for a while, and never had any issues. Earlier in the week I ran into an issue with the picture on the video… (ulteriori informazioni)

So I have been using Firefox to watch various videos on my PC for a while, and never had any issues. Earlier in the week I ran into an issue with the picture on the videos I will be watching freezing at a certain point. Usually when this occurs, the sound will continue to run, but the picture on the screen will just stay frozen. And to clarify, it is just the picture in the video that freezes, no issues with Firefox freezing. Also, it is important to note that at times the sound will hop to the end of the video (while the video continues the play at the point it was at), and I have even seen the picture freeze with the sound hopping to the end of the video.

To clarify, when the video picture freezes, there is no way (that I have found at least) to move beyond that point in the video. In essence, the video is useless after this issue pops up: something such as buffering does not solve the issue.

I noticed this issue only after my PC upgraded to Firefox 37.0.1. While I am not 100% certain the issues started after the upgrade, I am fairly certain, as I ran a video in chrome and it worked without any hitches. That led me to believe it is a Firefox issue, hence why I am asking it here. I prefer Firefox to chrome, so I hope someone can help me out in resolving this issue so I can stick with Firefox.

Any remedies?

Thanks in advance for all the help :)

Can I provide any more info to spark some answers? Let me know if I left any gaps that make resolving the issue challenging.

Chiesto da johnnyjohnny2015 6 anni fa

Risposta di johnnyjohnny2015 6 anni fa

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No 4K resulution on youtube

Some videos on youtube don't show the 4k resolution option under firefox and the only go up to 1080P but on chrome they show all the resolutions: example video https://yo… (ulteriori informazioni)

Some videos on youtube don't show the 4k resolution option under firefox and the only go up to 1080P but on chrome they show all the resolutions:

example video https://youtu.be/WU-NrfB8Kd4

I have flash installed as well

Chiesto da Levan7 5 anni fa

Risposta di jscher2000 5 anni fa

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Videos / mp4s will not play in Firefox

Videos, like mp4 Vines, won't play in Firefox. Same with the media files like podcasts in rss feeds. All used to work fine. This is an intermittent problem with Firefox (… (ulteriori informazioni)

Videos, like mp4 Vines, won't play in Firefox. Same with the media files like podcasts in rss feeds. All used to work fine. This is an intermittent problem with Firefox ( might be due to updates ) but it doesn't happen with IE or Chrome

If i uninstall VLC player or disable the VLC plugin, nothing happens If i have those installed but the VLC plugin is set to " Never activate ", i can right click on the video image, click " Play " and it opens in VLC player and works perfectly. If i have the plugin set to " always activate " then i see a black square and the message " the video can't be played because the file is corrupt "

Windows 8.1, Firefox 35.

This is an issue with Firefox and needs to be resolved.

Chiesto da Ipcress 6 anni fa

Risposta di Ipcress 6 anni fa

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The option to open a mp4 file with Firefox is no longer available since changed to 64 bit, how to fix

I have installed the 64bit Firefox, removing the prior Firefox program. Now, when I click on a mp4 and choose to open with, browsing to Program Files/Mozilla Firefox/Fire… (ulteriori informazioni)

I have installed the 64bit Firefox, removing the prior Firefox program. Now, when I click on a mp4 and choose to open with, browsing to Program Files/Mozilla Firefox/Firefox.exe and clicking does nothing even when set as 'default' opening program. Am I to have the 32 bit installed into program files x86 or is there something else I need to do? Before when Firefox was installed, it was under program files x86, then the change to Quantum, (ran fine, I could use to view mp4 files), a computer crash with 'Cannot repair member file [l:30{15}]"mozilla.browser"', a new install with change folder 'old firefox', removed prior install of Firefox (one with older install date), now have issue that can't use to open mp4 file from computer.

Chiesto da Philip 3 anni fa

Risposta di Philip 3 anni fa

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Great update today, now I can no longer use Prime or netflix

So thanks to your update today I can no longer watch videos via prime or netflix due to a Widevine.Cdm error. That's fantastic, especially as Microsoft are moving to Chro… (ulteriori informazioni)

So thanks to your update today I can no longer watch videos via prime or netflix due to a Widevine.Cdm error.

That's fantastic, especially as Microsoft are moving to Chromium, you're really selling your service.

See I'm being totally nice. And not calling you names.

Chiesto da Reallypissoff 2 anni fa

Risposta di cor-el 2 anni fa

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Firefox crashes

Every page with a video on it (even Youtube and Instagram) will crash the tab! The crash happens in safe mode too! Crash Report #1 ID: 49f883f9-f9c2-4111-bee9-26bd7018100… (ulteriori informazioni)

Every page with a video on it (even Youtube and Instagram) will crash the tab!

The crash happens in safe mode too!

Crash Report #1 ID: 49f883f9-f9c2-4111-bee9-26bd70181008

Crash Report #2 ID: 77d8ab6d-a54d-44a1-8537-50b520181008

Most Recent Crashes:

3821f8d4-b13e-468f-a1e6-f6ec50181008

ff1a61cc-2d95-4b44-8126-e172d0181006

d2e3d2d9-7555-47f7-b3c1-0afe60181001

0e10eede-554f-4c6c-8fdb-193020181001

80545949-1703-4e18-b5bb-78e5d0181001

Chiesto da DarkSuniuM 2 anni fa

Risposta di DarkSuniuM 2 anni fa

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make vlc plugin default player for youtube videos

hi is it possible to do so ? i still having high load and memory usage from youtube only videos, i would like to vlc be the default media player in youtube thanks in adva… (ulteriori informazioni)

hi is it possible to do so ? i still having high load and memory usage from youtube only videos, i would like to vlc be the default media player in youtube thanks in advance

Chiesto da Simoorish 5 anni fa

Risposta di cor-el 5 anni fa

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videos will not load and play in fire fox

I have tried to refresh, start in safe mode , reloaded flash and turn on and off, back on of the plug-ins and nothing works to solve problem. I am limited on my knowledg… (ulteriori informazioni)

I have tried to refresh, start in safe mode , reloaded flash and turn on and off, back on of the plug-ins and nothing works to solve problem. I am limited on my knowledge.

Chiesto da ldcrowe 2 anni fa

Risposta di FFus3r 2 anni fa

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Video clips won't play

Flash player is either screwed up or something else - or Firefox is blocking videos. Having experienced problems (videos just sit there or won't load at all) I've just u… (ulteriori informazioni)

Flash player is either screwed up or something else - or Firefox is blocking videos. Having experienced problems (videos just sit there or won't load at all) I've just uninstalled Flash Player and am attempting to reinstall a new version - but it won't let me. Seemingly there's another version being loaded - but no way can I find that or know what's happening, so I'm stuck.

The whole thing stems from my inability to watch any videos on Firefox - not even YouTube, BBCi LiveLeak clips or even porn. Yesterday everything went well but today I can't even see gifs on Imgur. What the hell is happening? Why is Firefox blocking me?

Chiesto da Monkeys_uncle 1 anno fa

Risposta di Monkeys_uncle 1 anno fa

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This video file cannot be played.(Error Code: 232011) Firefox help gives no specific and direct answer to this NEW problem

I'm running latest Firefox 68.2 64bit on Windows 7x64 Ultimate. This is a new problem, I can plat any media with all my apps and on other sites but Accuweather News https… (ulteriori informazioni)

I'm running latest Firefox 68.2 64bit on Windows 7x64 Ultimate. This is a new problem, I can plat any media with all my apps and on other sites but Accuweather News https://www.accuweather.com/en/videos/trending-now/co15rob4 videos are suddenly not playable. PS: Firefox Help was useless on this query/error. None of the results were relevant. Am I going to have to "Google Search for the solution? HELP please and thank you.

Chiesto da Tweaker 1 anno fa

Risposta di cor-el 1 anno fa

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Can't watch live videos on you tube

iam currently using acer nitro 515-52 with ubuntu 18.04 as my base os and whenever i try to access the live videos on you tube the following error occurs "our browser doe… (ulteriori informazioni)

iam currently using acer nitro 515-52 with ubuntu 18.04 as my base os and whenever i try to access the live videos on you tube the following error occurs "our browser does not currently recognize any of the video formats available. Click here to visit our frequently asked questions about HTML5 video". I have only browsec plugin installed on my extensions. I even tried to reinstal my firefox but the same error occurs. kindly suggest me an article so that i can overcome this issue.

Chiesto da tradeenterprisesolution 11 mesi fa

Risposta di jscher2000 11 mesi fa

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Firefox ESR crashes at watching videos with "alsa_stream_get_position: Assertion `delay >= 0' failed"

hello, i have a Raspberry Pi 4 with 4GB and Raspberry Pi OS installed. (2020-05-27-raspios-buster-armhf.zip) when i use the stock Firefox ESR (installed via sudo apt inst… (ulteriori informazioni)

hello, i have a Raspberry Pi 4 with 4GB and Raspberry Pi OS installed. (2020-05-27-raspios-buster-armhf.zip)

when i use the stock Firefox ESR (installed via sudo apt install firefox-esr) and watch videos (e.g. on Youtube, Vimeo, ...), Firefox does crash some times. according about:crashes, i already have submitted about 60 crash reports.

but watching the reports one thing is missing. when i open firefox from the console i can see some output, that is not appearing in the reports.

... firefox-esr: /build/firefox-esr-RgOFaD/firefox-esr-68.11.0esr/media/libcubeb/src/cubeb_alsa.c:1255: alsa_stream_get_position: Assertion `delay >= 0' failed. ExceptionHandler::GenerateDump cloned child 3366 ExceptionHandler::SendContinueSignalToChild sent continue signal to child ExceptionHandler::WaitForContinueSignal waiting for continue signal... Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Failed to open curl lib from binary, use libcurl.so instead Firefox ESR crashes when playing videos on Raspberry Pi OS (Debian)

during watching videos in firefox there is more different output to see that seems to be harmless. but always and only this line is printed to console, just befor Firefox crashes: firefox-esr: /build/firefox-esr-RgOFaD/firefox-esr-68.11.0esr/media/libcubeb/src/cubeb_alsa.c:1255: alsa_stream_get_position: Assertion `delay >= 0' failed. so i assume this is the main reason, why Firefox crashes on my system.

any idea how i can get these issue fixed? at the moment when i want to watch videos reliable i am be forces to use the external VLC Player by copy the url to VLC - at least for Youtube videos. but i want to watch videos from other web pages as well and i prefer to watch videos in firefox directly.

Chiesto da beta-tester 9 mesi fa

Risposta di beta-tester 4 mesi fa

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Updated to 34.0.5 and now I cannot watch Videos on YouTube anymore. Before the update it worked just fine. Any ideas?

Macbook pro 2011 OS X 10.9.5 Addons: Ghostery Adblock YTcenter Firebug Reddit Enhancement suite Error message in YT-player: An error has occured, please try again later. … (ulteriori informazioni)

Macbook pro 2011 OS X 10.9.5

Addons: Ghostery Adblock YTcenter Firebug Reddit Enhancement suite

Error message in YT-player: An error has occured, please try again later. Learn more.

Chiesto da jamafu 6 anni fa

Risposta di guigs 6 anni fa