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When I listen to music via Firefox, my computer goes into sleep mode after 15 minutes (windows close and password is required)^)^. I've looked everywhere to find a solution to this problem, but I can't find one... Can you help me?

Issue Description: I’m experiencing a problem with fullscreen mode while using YouTube on Firefox on Windows 11 with a dual-monitor setup. When I enter fullscreen, the video does not cover the entire screen. Instead, I can still see parts of the Windows desktop or background around the edges of the display.

This issue only happens on Firefox and only when using fullscreen mode on one of my monitors. I have already checked my display settings, scaling, alignment, and hardware acceleration, but the problem persists.

System Details:

Windows 11

Dual-monitor setup

Browser: Firefox (latest version)

Issue: Fullscreen video shows borders and does not fully cover the screen

Expected Behavior: The fullscreen video should completely fill the selected monitor without showing any part of the Windows desktop.

Please advise on how to resolve this issue.

Trying to run Prime and Netflix in a Linux browser on my new Lenovo Chromebook Plus 14. Not that this is an ARM based unit (Kompanio Ultra 910).

I can successfully download Firefox for Linux: Mozilla Firefox Debian Package mozilla-deb-1.0 144.0 (aarch64)

But when I go to run streaming video services get: Prime Video is incompatible with your current operating system or web browser. You must update to watch Prime Video titles. Review the Prime Video system requirements. If the problem continues, please contact Amazon Customer Service and refer to error 7132.

Same with Netflix.

any ideas, thoughts, solutions?  :)

Cheers.

Reposting until I get help from someone. Windows/desktop. On Google Chrome, any streaming website I used with autoplay enabled would KEEP full screen mode ON after changing episodes. It would automatically go to a new page with the following episode and remain full screen. Why doesn't Firefox have this feature?? I'm seriously considering going back to Google Chrome for this one small feature. Every time I had any streaming service playing with autoplay enabled, I didn't have to manually select the full screen option every time. I am having to stand up and manually click full screen function. Every. Single. Time. Somebody please help me if there's a way to active that function.

Any kind of video playback is taking so much time and even if it is playing the video playback is not smooth at all. I have disabled all the extensions, deleted the cookies, using the latest version still things are working the same.

Hello,

I am having an issue with my Bluetooth headphones (Sennheiser HD 450BT) in Firefox on Windows 11.

The headphones are properly connected to Windows and work correctly with other browsers (Edge, Chrome).

Windows shows the headphones as the default output device (stereo), and test sounds play through them.

However, in Firefox, the audio does not go through the headphones. Instead, it plays very loudly through the laptop speakers.

The problem started today; there were no issues for about a year.

I have tried reconnecting/reinstalling the headphones, but it did not help. Drivers are also up to date.

Could you please advise how to make Firefox correctly use my Bluetooth headphones as the audio output device?

Thank you for your assistance.

Only on firefox, the music on apple music keeps changing volume. I can hear it sound fine for a second but then it changes the volume to around half of what its meant to be. I dont see any settings to change it, its fine on other browsers, im genuinely unsure of what to do.

Recently, if I am playing audio from Firefox on my phone, the audio stops when my phone screen is locked. This did not used to happen and does not happen if I play the same audio from Safari. I am using an iPhone 17 Pro running iOS 26.1. I have tried resetting the phone and removing and reinstalling Firefox, but it persists. The problem does not occur with audio played from the same webpage through Firefox using my iPad, logged into the same Firefox account.

I need assistance resolving an issue where videos on YouTube play choppily in Firefox. The playback stutters frequently, even at lower resolutions, while other browsers stream smoothly. I’d appreciate guidance on troubleshooting steps to improve video performance—such as checking hardware acceleration, browser settings, or possible extensions causing the issue.

Particularly on US news sites, inline / spot videos still auto-play despite the FF preference set to block audio and video. Mercifully, audio isn't playing. This seems to be a fairly recent problem since the last couple / few updates; not really certain.

I recently started having this issue with YouTube in the mobile Firefox browser where if I tap within the video frame (anywhere on the picture) the video pauses/plays just like clicking the video frame on desktop. Before when I tapped the frame it would toggle the overlay play menu with the usual play/skip/settings but the video would continue playing beneath the buttons. To clarify, the play menu always disappears like it should when the video is playing so this is not the "Accessibility player" settings issue.

The issue goes away if I sign out of YT which makes me suspect it's an account settings issue, however I have played with the accessibility and other settings to no avail. I have uninstalled/reinstalled all of my extensions, restarted my phone, signed in and out of youtube/firefox, updated everything, uninstalled and reinstalled firefox, no solutions so far, please help!

So Im currently trying to watch young sheldon on netflix, and im doing it through firefox, and it wont work, it says error code f7701-1003, thank you for your time.

I am feeding my radio station into my computer, but when i bring the station up on a computer is is a page with my station on it and click on the play button it plays your music instead of my station. How do i fix that?