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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.

In Firefox, I have audio and video autoplay blocked globally, and added an exception for one particular website (Discord). However, Discord now only autoplays videos once, but doesn't loop them as it should (they implemented GIFs as videos, but now they don't loop).

Of course this could be interpreted as a bug in Discord's web client. However, there shouldn't be a difference between a website that got an exception and autoplay being globally allowed. Therefore i suspect that there is a bug in firefox where some property, state, or hint is set differently depending on whether a page has been added to exceptions or autoplay is allowed globally.

Is there anything i can do to work around this? I really want an autoplay exception to actually work as expected (the website doesn't need to know that it's special)

The same thing happens on my two Dell laptops (Inspiron and Latitude), and a Hyper-V VM (on my desktop PC). They all run Bazzite Linux 6.17.7-ba25.fc43.x86_64.

A video may play for a second or two, and then it's either a black screen, or an error message of "The content doesn't seem to be working."

On the same two laptops and VM, the Chromium Browser, and LibreWolf (a fork of Firefox?), have no issues playing the same videos.

Firefox version on all three systems is 147.0.3.

Any help/guidance welcome with thanks.

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.

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've tried messing with hardware acceleration, resetting the zoom to 100, it seems when i get the zoom as low as possible it tries to fall back into place, i can't find any fix on this, i like this browser but i cant watch anything like this

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.

For the last two years the issues with video stutter have been worse and worse for me. I don't know if it is because of a different codec the video is using, but if it was I would expect the fans to ramp up from trying to decode it. Instead, my laptop stays always silent, but the video laggs like crazy when I want to play it at native 1440p.

I cannot view or change the video codec, since the current issue happens on a platform (herohero.com) other than youtube.

Hello! I've recently been having some issues getting videos to play in the background from Firefox's audio notification media player feature. I very frequently use YouTube in the Firefox browser so that I can then exit the browser and still play the audio of a video via the media player, but last night that media player stopped working for me. When I close the Firefox app, I still get the notification as usual, but tapping the "play" button achieves absolutely nothing. I've tried to search the issue and test some fixes myself, but nothing has worked so far. The fixes I've tried include:

• Activated "Allow video and audio" in the Firefox Autoplay setting
• Made sure autoplay was allowed in the YouTube browser tab
• Tried to play the audio while connected to wi-fi and while on data
• Checked for updates to my phone, YouTube, and Firefox (I am up to date)
• Deployed the old "turn it off and turn it back on again" fix, both in Firefox (closing all tabs and re-opening), and for my phone (shut it down and restarted it).

None of the settings for the media player or general notifications for Firefox seem to govern this issue, so I'm bringing it here. Thank you for taking the time to read through all of this. Please let me know if you have any suggestions for me! (I've included a photo of the notification bar for extra reference)

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.

My sound does not work when using Firefox. But when I switch to the troubleshooting mode in the "Help" menu, the sound works normally. I did not make any changes to sound settings. Sound was fine last night and did not work when I woke the computer up this morning. I am using Windows 11. Going from troubleshooting mode back to normal mode causes the sound to stop working again.