Firefox: форум сообщества

“Whenever I play YouTube videos in Firefox, the playback stutters and becomes choppy. This happens even at lower resolutions (e.g., 480p). I’ve tested on Chrome and Edge, and the videos play smoothly there. I’m using Firefox version [insert version number] on [insert operating system]. I’ve already tried clearing cache, disabling extensions, and updating drivers, but the issue persists. Could you help me troubleshoot what else might be causing this?”

Hello, I’m using Mozilla Firefox on Windows 10.

The issue happens mainly on YouTube: – Videos stutter every few seconds – Audio sometimes goes out of sync – This happens on 1080p and 720p – My internet speed is stable (~XX Mbps)

Facing these issues on video/educational platforms other than YouTube. I am not facing either of these issues on other browsers like Microsoft Edge, on the same network. Please let me peacefully watch my educational videos, else I'll have to switch to other browsers and encourage others to do the same. I have a lot of respect for your open-source community-based browser, but such errors are causing intolerable pain. PLEASE RESOLVE ASAP.

"I’ve been having trouble with choppy YouTube videos in Firefox. It happens on both Wi-Fi and Ethernet connections. My system is running Windows 10, and I’ve already tried disabling hardware acceleration and clearing my browser cache. The issue persists even when I’m in Safe Mode. I’m using the latest version of Firefox (XX.XX). Any suggestions on how to fix this?"

When watching videos on youtube, I hold down the space bar to make it go at 2x speed, this makes the video and the audio de sync the more I hold the space bar, It's been happening for quite some time and I can't seem to find an answer as of why this happens or how to fix it.

After a Windows 11 update my Firefox browser no longer has any audio. The sound is turned all the way up in the Sound Mixer and I have no Bluetooth devices connected. After it initially happened I connected my Bluetooth earbuds and it worked for a few minutes before it too lost audio.

I have audio on all my other applications.

Hello. On/about 25jun2025 the sound on my Firefox videos stopped working from any source. I know enough to determine the problem is on Firefox. Videos on MS Edge worked fine. Sound works form VLC songs, etc. Sound does work with earplugs. Wondering if that could have caused the loss of speaker sounds. You think I could delete my current firefox and reinstall it. That would be a pain (an hour or so to set it up again.) Thanks, Bill

I've freshly reinstalled Windows 11 and after trying to access and watch a movie on any of these sites I get an error (see the pictures).

Browser version: 137.0.1 (64 bit) Widevine version: 4.10.2891.0

Already tried to disable/enable DRM. Already reinstalled firefox. Already manually installed widevine. No clue what could be causing this issue.

Whenever I try to watch videos on websites such as onlyfans youtube, etc., the videos will not play since I installed firefox. I have to shut my computer down and start it all up for them to play. I googled how to fix this and I need to go to settings and scroll to performance and uncheck use recommended performance settings and uncheck use hardware acceleration when available but I can't find this to uncheck these items. Can anybody help me? TIA

Hello! For some time now I suddenly have no sound in Firfox, otherwise the sound works everywhere, even in other browsers. All help instructions do not help. Do I have to switch to another browser for good? Thanks for help

Can't seem to stream Netflix. Firefox is up to date. New Widevinecdm update today 4/2/2025. Apparently since that update (today) I can't stream. I get Netflix error code F7702-1003. Searched/read several FF articles/forum Qs - no help. did a "refresh FF" - no help. don't want to install Chrome (Google knows too much about me already). Netflix worked fine last night. Tried unchecking "play DRM controlled content" - FF(Netflix site) asked to enable DRM - clicked ok - reinstalled. no help. Hard reboot - no help. Still running a Win7 64-bit desktop OS - works fine.

HELP!! Thanks

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.