Форум сообщества Firefox

Hi Mozilla Community,

I’ve been experiencing some issues with video playback on Firefox, specifically on YouTube. Videos seem to always play in a choppy manner, no matter the quality settings. I’ve tried clearing the cache and updating Firefox, but the issue persists. I’ve also checked my internet speed, and it's stable, so I'm not sure where the problem lies.

Has anyone else faced this issue? Any suggestions on what might be causing the choppy playback or how to fix it?

To give some context, I was also recently looking at how efficient high-speed trains operate around the world, and came across a fascinating comparison of the top 10 fastest trains in India. Just like video streaming, maintaining high performance and smooth operation is key — it made me realize how even small optimizations in streaming might have a big impact on the experience.

I appreciate any help or insights from the community!

Thank you!

I went to cp24.com and the video on the right side should load the news channel live automatically but it won't load, I tried downloading a new extension but still does not work, any help would be great, thanks!

Hi there, I am facing a strange issue in latest version of Firefox after Win10 Fresh Install. The Audio is not working. Audio Drivers are ok. Able to play audio in media player and other browsers but not in firefox. Please help. Tried all settings like sound mixer , FF reinstall, audio drivers update. But same issue. Even video not started playing in youtube etc.

It would be cool if you guys added a display to control the volume of a certain tab (like YouTube that people often use to play music while doing other things) AND add a feature that when a new media starts playing it stops the other one (like on Opera GX, the browser I came from). This would be really helpful and immersive since the user wouldn't have to deal with sounds collision and focus on his thing, not interrupting his flow to mute a music or a podcast or whatever. Also if you guys could add this feature, let the users choose between two options: pause (which completely pauses the background media) or fade-to-mute (which quickly fades the background audio until it is completely muted, but not paused. When the principal media stops playing, it will fade in again).

When assigning a URL to the mediaplayer object it started appending the current path to the URL. Did not do that in prior version. You can see it automatically puts the current browsing URL and then the URL that is assigned. So the file will not load. GET https://www.swingtechnologies.com/https://www.swingtechnologies.com/UploadVideos/clarkj@pobox.com/S200629_019 A.mp4 [HTTP/2 404 8ms]

Note: the following is an editted version. 20250706 13:02

when i MUTE some tabs (using the native FF tab mute icon on the tab) sound is muted for just that tab. HOWEVER, it also mutes ALL SYSTEM sounds.

This occurs both with my regular profile and using a default profile for my version (which has NO ADDONS).

It seems to depend on the type of delivery of the music. (Or something!)

This occurs for the following URLs:

   https://14223.live.streamtheworld.com/WRTI_CLASSICAL.mp3
   https://areena.yle.fi/podcastit/ohjelmat/57-llL6Y4blL

However, rather interestinly, it DOES NOT OCCUR for the "standard" WRTI radio station:

   https://www.wrti.org/classical-playlist-search

it seems UNREASONABLE THAT A WEB SITE SHOULD BE ABLE TO EXERT ANY CONTROL upon system sounds.   So, I must presume this is a FF bug; however, I have not posted it as such (having no confirmation from others).

FF 139.04 Windows 10 pro

Hi, Used to be able to play youtube videos on FF. Lately I can't. I downloaded Chrome and it played youtube videos just fine. Can you help me resolve this problem? Thanks, Ed

Firefox just stopped showing the videos in youtube, I can hear the sound but no image, tested with 3 vids , all play normal on chrome sound and picture BUT NOT on firefox, I have cleared cache, updated firefox, rebooted, used CCleaner , cleared history, rebooted PC but to no avail. Are there any settings in Firefox that is preventing screening of utube vids. And how were they changed.? Regards and thanxs Janina

Hello Firefox Support,

I’m encountering a strange issue with Firefox. While playing YouTube videos at very low quality (144p) just to listen to music, my GPU usage spikes to 100%. This happens even when the video is not fullscreen and there’s minimal visual content.

System Info:

   Firefox Version: 140.0.2 (64-bit)

   Operating System: Windows 11 

   CPU: AMD Ryzen 7 8700F (no integrated GPU)

   GPU: AMD Radeon RX 7900 GRE

   GPU Driver Version: AMD Adrenalin 25.6.1 

The issue goes away when I disable hardware acceleration in Firefox settings, but I’d prefer to leave it enabled for better performance elsewhere.

Is this a known issue with AMD GPUs or is there something else I can try to reduce GPU usage during playback?

Thank you for your help.

I found that the sound produced when watching YouTube or any website that uses sound is very small, I tried to compare it with other browsers and Firefox sounds very small when compared to other browsers with the same volume and settings.

Description: while viewing videos on youtube, twitch, odysee (and possibly other sites with videos), the video player may suddenly stop playing, and after that, no video in firefox can be played. Restarting the browser makes this issue disappear for a while, but i'd like a permanent solution.

What i've tried so far: Disabling uBlock Clearing cache and cookies Enabling/Disabling hardware acceleration Disabling proxy extension Disabling antivirus on PC.

YouTube videos encoded at 60 frames per second are extremely choppy in Firefox only. Microsoft Edge plays the same videos perfectly.

I have deleted my profile and reinstalled Firefox, updated graphics driver to the latest version, and toggled hardware acceleration on and off. Nothing helps.