Firefox Community Forum

I don't know when it began but on 136.0.3, I'm experiencing choppy playback of 4k/24fps video. 60fps works fine, as do lower resolutions of 24fps content. I confirmed that YT is using the VP09 for playback.

No matter what site I am using, youtube, or any other site that contains videos or audios, I cannot hear the sound when using Mozilla. I want to mention that there is no problem with my speakers because if I use Chrome on the same computer, the sound works. Can you help me?

FINALLY got my zorin os to update, and now also have the newest version of firefox uploaded and working. My singlefile addon works properly, I have upgraded to the newest versions of my video downloaders, and I have cleared my history, but my 2 video downloaders still don't recognize any videos on youtube. Any suggestions or alternative downloaders?

Videos over a certain resolution won't play on Twitter/X. Anything 1080 and over vertical won't play. I get audio, but not video. If I use Maxthon (Chrome) I can see the video. I've downloaded the video files and those that are 1080 vertical are the ones that won't play in Firefox. In the picture I'm sending, you can see that Firefox is stuck on the very beginning of the video and the Maxthon video has started, hence the subtitles. Is there a setting in Firefox that will allow me to watch these videos? Thank you.

I've recently switched back to Mozilla Firefox again & I installed it via its official installer in Windows 11.

There's something wrong with playback what I noticed is that if I disconnect my wired earphones/headphones & then it pauses the media playback.

I am not aware that if this is an issue, bug or default behavior.

If it is not an issue then is there any possible way to modify such behavior.

Note:

• This thing is tested when all extensions are turned off (disabled)
• Such behavior is observed in both web players such as YouTube, dailymotion, etc. & locally stored/saved/downloaded videos played in Mozilla firefox.
• Not any setting was imported from any browser

I can select the video on the thumbnail and then the thumbnail says playing but nothing is happening. No video and no audio. Videos on all other sites work normally

When I load the video the page loads like normal, all comments and everything is there except the video square is not there. cant see the video, anyhow. even if i move my mouse cursor on it on the start page, the little video wont play the preview. no video player at all. anywhere.

Recently switched from Chrome to FF on macOS. Running latest Sequoia 15.3.2, Firefox 136.0.2 (aarch64) on a Macbook Air M4.

Problem: When watching a video eg YouTube but including other HTML video, on Firefox where macOS is globally muted and scrubbing through the timeline using the arrow keys, or starting a video mid-way, the audio briefly cuts in (less than a second) and quickly mutes again. I was surprised by this as I expected with macOS globally muted, no application would be able to make any sound.

This behaviour is limited to Firefox and persists with all extensions disabled. macOS is stock with Sound output set to the built-in Macbook Air speakers. No other sound drivers e.g. Soundsource or a USB audio interface have been installed. The laptop itself is brand new and stock.

Can anyone explain why this might be happening?

Hi . I have latest Firefox browser on win11 and from some time i got problems with no sound for my "Eversolo DAC-Z8" . I can play sound thru the browser only on my TV when i set on mixer sound from TV but unfortunaty sound cant go other ways . I dont know what is going on becuse on oldest Firefox browser was no problems .

Videos on Bluesky have never appeared for me, instead they all say "Your browser does not support the video format. Please try a different browser." This seems to happen regardless of the video source.