Firefox Community Forum

Just updated to 144.0.2 (aarch64) on my MacMB Pro running Sequoia 15.7.1 with no other changes and now I can't play any YouTube videos, whether embedded in a website or YT directly. Get eithger a black screen or white, such as below. What arcane setting do I have to mess with now to get this back to normal? (OK in Safari.)

I am getting sick and tired of ytube video 153 error messages on the latest releases of Firefox when trying to access a ytube video. I use Firefox on Linux (Ubuntu and Mint) with multiple profiles and it didn't used to be this way!!

Even clearing the profile cache and history has unpredictable effect. The web is full of questions to this very issue with no definitive fix. It appears Firefox is not clearing things out properly even though the profile settings are set to delete everything upon exit.

What is the fix?? (or is there one?) A very frustrated longtime user.

Hello Mozilla Support Team,

from yesterday playback speed on youtube is not working. When I open the same video with Edge playback speed is available.

Could you please check and rework?

Thanks in advance.

Many greetings Stefan

Just built a new PC and using Win11. I like to have a pinned tab in Firefox playing some kind of media to have background noise. Since new build, whenever I am not 'focused' on that tab and doing other tasks, audio from that tab will cut/fade in and out.

I've been working on this for 16 hours. I've googled, binged, even yahooed. No answers. Checked and rechecked all settings, both system and browser. Uninstalled/Reinstalled *many* applications, including Firefox. My OCD won't let me rest till I have this solved.

Thanks for the help.

Firefox is no longer playing audio from the Internet. I am running Firefox on Windows 11, and have the latest update installed (10/29/25). What happened? How do I fix this.

I am 99.5% sure this is a Firefox issue, as I have no problem playing audio files stored in my computer, and no problem playing Internet audio using Chrome or Edge.

Help!

Dear, When playing a video on Youtube, Jellyfin or listening to the radio the video stops after a second of playing. Restarting FireFox works for a short amount of time and after that constant pausing of video's after pressing play. Really annoying.

What I allready tried - What is pressed --> none - Rebooting PC --> 5-10 min fix - Restarting FireFox --> 5-10 min fix - Updating FireFox --> Was on the newest version of 28 OKT 2025 - Updating Windows 11 --> Was on the newest version - Problem Solving Mode (So plugins/addons disabled) --> No fix - Chrome --> Works perfectly - Brave --> Works perfectly

Any idea's/fixes

Hi,

I have been having this weird issue that I believe is being caused by firefox as no other internet browser has the same issue. When I'm playing music on spotify and I open firefox the sound goes quite bu the audio is still playing on spotify . One work around I have found is to take on of the tabs and use it to open a new window and the put it back with the others and the sound comes back again. I lost and need help as this is making it hard to want to use firefox which I have been a user of since it first came out.

When I play a video with the web player in Firefox that has AC3 audio, I get no sound.

Doing some research it looks like AC3 used to be patented so I assume that is why it isn't included in Firefox but since March 20, 2017 the patent for AC3 has expired so I'd think it's now OK to include in Firefox.

The same video works in Edge and Chrome.

After a Windows 11 update, every time I play some video/sound and stop the playback, my whole computer audio doesn't work anymore. When I reset my computer, the audio comes back again. I tried using other browsers (Edge, Chrome, etc.) and other programs/applications, but this only happens in Firefox.

Any ideas on what can I do to solve this issue?

Basic information:

Firefox version: 133.0.3 (64-bits) Operation System: Microsoft Windows 11 Home Single Language OS Version: 10.0.26100 Compilation 26100 Computer Brand: Alienware m16 R2 Sound drivers: Realtek Semiconductor Corp. version 6.0.9738.1

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

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