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AVC video playback is periodically malfunctioning on Firefox 133.0.3 after updating Intel Graphics driver to 32.0.101.6129

My GPU is the integrated GPU on the Intel U7-155H CPU. When some AVC videos are played, the browser reacts extremely slow and the video image is glitched and at a really … (read more)

My GPU is the integrated GPU on the Intel U7-155H CPU. When some AVC videos are played, the browser reacts extremely slow and the video image is glitched and at a really low rate of frame, and the video decoding engine seemed to be 100% occupied as shown in the task manager (normal video playback never occupied so much of it). Seems like AV1 encoded video never triggered the problem. The problem doesn't always happen, but at a rather high frequency. This never happened before I updated the Intel graphics driver from 32.0.101.5972 to 32.0.101.6129. The problem seemed not to happen on other browsers such as Microsoft Edge.

Asked by rjys365 2 months ago

Last reply by sstvytac 3 days ago

Only some videos play without audio, only in Firefox

I've recently done a clean reinstall of Windows 11 and have noticed that, only for Firefox (134.0.2, build ID 20250120135430), a few videos playback without any audio, ye… (read more)

I've recently done a clean reinstall of Windows 11 and have noticed that, only for Firefox (134.0.2, build ID 20250120135430), a few videos playback without any audio, yet the same videos play with audio when using edge as a comparison. Most (if not all) of these videos did play with audio in Firefox prior to this reinstall.

Firstly, I'm pretty sure this is not a windows sound mixer issue since many videos on the same page and tab play back with audio just fine in Firefox. The same goes for it not relating to the Firefox setting 'Speaker selection', under (burger) > settings > privacy & security > Permissions because videos of different formats (or using different players) on the same page play back audio fine. The tab is not muted. Again, some videos on the same browser tab play audio fine; some of a particular format or player only play the video, while missing the audio (and where Edge plays the same video with audio).

Another common and potentially relevant issue I've seen is that, this being a 'Windows 11 N" install, it was initially missing the settings > system > optional features > Media feature pack, but that is now something I've successfully added. I should add that windows did report problems when I initially tried to add the media feature pack but, after a very long delay, it eventually appeared to succeed when I ran a couple of DISM incantations that I think ended with - "dism /online /add-capability /capabilityname:Media.MediaFeaturePack~~~~0.0.1.0"

I have the 'Play DRM-controlled content' setting enabled.

Comparing the Firefox vs Edge video playback on this video test page - https://tools.woolyss.com/html5-audio-video-tester/ I get the following results (don't know how to get it formatted/aligned correctly, sorry) -

                           FF vid    FF audio    Edge vid    Edge audio
av1-opus-sita.webm          Works     Works       Works       Works
vp9-vorbis-spring.webm      Works     Works       Works       Works
vp8-vorbis-sintel.webm      Works     Works       Works       Works
avc-aac-nerdist-friends.mp4 Works     MISSING     Works       Works
avc-aac-big-buck-bunny.m4v  Works     MISSING     Works       Works
avc-mp3-sita.mov            Works     Works       Works       Works

And perhaps also relevant is that there's also a difference in the audio-only samples further down the table on the same page -

                   FF audio   Edge audio
audio-sample.mp3    Works      Works
audio-sample.weba   Works      Works
audio-sample.ogg    Works      Works
audio-sample.opus   Works      Works
audio-sample.flac   Works      Works
audio-sample.wav    Works      Works
audio-sample.m4a    FAILS      Works
ac192.mp3           Works      Works
spoonradio-hd.aac   FAILS      Works
audio.opus          Works      Works

Also, every 'v.redd.it' / reddit-video-player video plays the video fine but has no sound when using Firefox but plays both sound and video fine with Edge. Here's one for example - https://old.reddit.com/r/funny/comments/1i7y1nr/rock_paper_scissors/

I've seen lots of similar (but not identical) issues on Firefox video with no audio problems with suggestions a few things to try. In addition to what I've already mentioned above, I've tried the following without success -

- Restarting Windows - Restarting Firefox - Restarting Firefox with addons/extensions disabled - 'about:support' > Refresh Firefox - 'about:support' > Clear startup cache - (hamburger) > more tools > task manager > (click the little profile icon for the page playing the video) - I've checked the settings suggested here: https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues#w_check-some-firefox-settings

I realise it may be possible to side-step this problem by flailing around with more drastic work-arounds like trying a clean re-install of Windows or a full uninstall and clean of Firefox, but that doesn't really help figure out the problem, which leaves the possibility it could easily happen again to me or others when it might be something that can be more properly fixed or guarded against in Firefox itself, so I hope someone can suggest what might be done to home in on identifying the cause of the problem and so learn whether a more precise fix can be employed.

Asked by Ernie_Gurney 3 weeks ago

Last reply by Dave 4 days ago

How to stop videos from following as you scroll down a link huff post …..Firefox 135. Mac 12.7.6

I have no idea how to access the following directions I found trying to address the question of : How to stop videos from following as you scroll down a link huf… (read more)

I have no idea how to access the following directions I found trying to address the question of : How to stop videos from following as you scroll down a link huff post …..Firefox 135. Mac 12.7.6

Go to about:config and set media.autoplay.enabled.user-gestures-needed to false to disable all kinds of autoplay.

Asked by ark25 6 days ago

Last reply by jscher2000 - Support Volunteer 4 days ago

Youtube at max 720p?

Do you know of a mod that won't allow Youtube to have a resolution higher than 720p, including when embedded? I almost-always have Youtube at 480p when watching through t… (read more)

Do you know of a mod that won't allow Youtube to have a resolution higher than 720p, including when embedded? I almost-always have Youtube at 480p when watching through their site. I noticed that when watching a video on another site and that it's embedding Youtube, that the resolution is higher > 480p and in those cases it's not rare to be > 720p.

I'd like a mod or setting so that when it's active that Youtube can't have a resolution higher than 720p, including when embedded. Any idea if there's something alike?

Thank you kindly for your help

Asked by DynV 1 week ago

Last reply by James 1 week ago

No audio with headphones

Audio doesn't work with Firefox. This appears to be ONLY a Firefox problem. Headphones work with Edge. Computer speakers work. In Windows settings, testing audio works. B… (read more)

Audio doesn't work with Firefox. This appears to be ONLY a Firefox problem. Headphones work with Edge. Computer speakers work. In Windows settings, testing audio works. But when I attempt to listen to something in Firefox, there is no sound at all.

Asked by Seigfried 1 week ago

Last reply by markwarner22 1 week ago

Can't get playback with Firefox browser for either Tubi TV or Pluto TV anymore?

I cannot seem to get playback with Firefox browser for either Tubi TV or Pluto TV anymore. Have uninstalled and reinstalled Firefox, have tried to just refresh data yet s… (read more)

I cannot seem to get playback with Firefox browser for either Tubi TV or Pluto TV anymore. Have uninstalled and reinstalled Firefox, have tried to just refresh data yet still no playback.

Asked by d.selland 1 week ago

Last reply by markwarner22 1 week ago

video not redirecting

hi i need help with a website that used to play videos but since last few times its not working as its saying video cannot be redirect to due to cookies but i clear them… (read more)

hi

i need help with a website that used to play videos but since last few times its not working as its saying video cannot be redirect to due to cookies but i clear them so can you help

Asked by jdoshi29 1 week ago

Last reply by jscher2000 - Support Volunteer 1 week ago

Slim Pen 2 disables touch capabilities in Firefox

I have a Microsoft Surface Pro 8 with a Slim Pen 2. I do a lot of searching in google maps and have noticed that I can access google maps and can use pinch to decrease an… (read more)

I have a Microsoft Surface Pro 8 with a Slim Pen 2. I do a lot of searching in google maps and have noticed that I can access google maps and can use pinch to decrease and expand the maps and if I open a street view I can use touch to move the field view around as it should be. The problem occurs is when I use my slim pen. Once I have used the slim pen to move a field or open a street view the touch capability stops working. I can still close the window and other things with the touch capability (system type functions), but within the browser it's disabled.

I have not noticed this occurring in any other web site or type. For example I can go to amazon and interchangeably use the pen and touch capability without issue.

I have tested this in Google Chrome and MS Edge and it does not disable the touch capability when I use the pen.

Asked by Scott Elliott 2 weeks ago

Last reply by markwarner22 2 weeks ago

Netflix and Peacock video has stopped working (but I can still hear the audio). Same issue on Chrome and Safari.

I decided to download Firefox and make it my default browser, so I downloaded it and followed some recommendations I found online for configuring security settings...but … (read more)

I decided to download Firefox and make it my default browser, so I downloaded it and followed some recommendations I found online for configuring security settings...but for the life of me I can't remember what those are.

Weeks later, I decide to watch Peacock, but the error message says I need to disable my ad blocker. I search for an ad blocker in the extensions but can't find one, so I start disabling other extensions like Facebook Container...but to now avail. I follow all the usual online steps--clearing my cache, restarting the application, restarting my computer, etc--but nothing works. I have the same error with Netflix, and switching to another browser yields the same result. So it must be something wrong with my system.

Can you help?

Asked by alexanderdominitz 2 weeks ago

Last reply by cor-el 2 weeks ago

Video Won't Play in Browser

This issue just appeared. Video will not play in Firefox. Windows10 PC, up to date with latest versions, as is Firefox. There is no error message or code. Just the spinni… (read more)

This issue just appeared. Video will not play in Firefox. Windows10 PC, up to date with latest versions, as is Firefox. There is no error message or code. Just the spinning wheel. I see other people are having the same issue but I haven't seen a solution. Any ideas or help appreciated.

Asked by janswers 2 weeks ago

Last reply by markwarner22 2 weeks ago

Youtube 8K60fps playback support Apple Silicon Mac

I cannot select 8K60fps Youtube playback on my M4 Mac mini, so please add support for this in the Firefox MacOS browser for Apple Silicon devices, or at least the latest … (read more)

I cannot select 8K60fps Youtube playback on my M4 Mac mini, so please add support for this in the Firefox MacOS browser for Apple Silicon devices, or at least the latest M4 series of chips.

Asked by Nikolai Stoykov 2 weeks ago

Last reply by markwarner22 2 weeks ago

The videos are displaying in a green scrambled mess.

I have noticed that just recently videos across all different websites are not displaying properly. The image part of the video is a green scrambled mess. The audio is fi… (read more)

I have noticed that just recently videos across all different websites are not displaying properly. The image part of the video is a green scrambled mess. The audio is fine, but the images are wrong. I am not having this issue on a different browser, and I'm not sure what I'm supposed to do. I don't know if changing any of the settings will help or if there's a bug in one of the updates.

Asked by Grace Jahnke 4 weeks ago

Last reply by jonzn4SUSE 2 weeks ago

Videos watched on Firefox pixelate and are unwatchable.

Whenever I try to watch a video, on any website, it pixelates so bad that it's just unwatchable. Do I have a setting wrong that could fix this? Watching the same video on… (read more)

Whenever I try to watch a video, on any website, it pixelates so bad that it's just unwatchable. Do I have a setting wrong that could fix this? Watching the same video on different browsers (edge, chrome) works fine. I've attached an image to show what I'm getting. Occasionally, it will work just fine but if I pause the video to come back to it, it goes back to this at some point.

I'm running on windows 11 and Firefox Version 134.0.2 (64-bit)

Asked by rad2_themax 2 weeks ago

Last reply by jonzn4SUSE 2 weeks ago

Fubo TV no longer will play content

We're finding we can no longer watch FUBO TV on Firefox. Works fine in Edge. Anyone have any suggestions? We've cleared cache/history, restarted laptop, etc. This occurs … (read more)

We're finding we can no longer watch FUBO TV on Firefox. Works fine in Edge. Anyone have any suggestions? We've cleared cache/history, restarted laptop, etc. This occurs both on recorded programs and live tv. We still seem to be able to get the commercials, although we tried watching on two different devices and the commercials were very different. Is it possible for Firefox to have been hacked but not Edge on the same device? Doesn't sound plausible to me, but I'm not sure. This has happened since the last update to Firefox. We have Windows 10 64 bit. Firefox 134.0.2 or whatever the latest version is. We're stumped why it works on one browser but not the other. Has to be a Firefox issue.

Asked by kentuckywoman2 3 weeks ago

Last reply by markwarner22 3 weeks ago