Firefox Community Forum

For some reason since yesterday, my shortcut on my keyboard (FN+F7) is no longer playing or pausing videos on Firefox. It still works for everything else, so I feel I may have accidentally done something to stop this from working. Any help would be mightily appreciated.

The last two days my internet performed poorly, but it worked (in between crashes). Now it took me 12 computer restarts and hours of patience to get to this page and plead for any sort of internet. I can't visit any page with moving imagery or it will crash, it won't start any video if there would be sound on it, stating that I don't have permission or simply not doing anything at all. I can't even finish the news-program I was watching on public acces tv. Please fix this!!! I'm desperate! I need to watch instructions for school and see my work-roster and I can not acces any of those pages anymore.

Recently I formatted my pc and after reinstalling windows I immediately downloaded Firefox and synced my profile.

For some reason, videos on some (most websites) are not working at all. They just dont play, and these are websites that I used just last week on Firefox, and that I've tested on other browsers and work just fine. I've tried troubleshooting mode, new profile, deleting cache, etc, and nothing has worked. On some websites, I dont even see the player, its just blank, and in others I see the player but no playback (doesnt even seem to buffer).

YouTube works just fine strangely enough.

There are audio and video files for which I receive in the console that they can't be decoded. Media resource could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_RANGE_ERR (0x806e0069)

ive been facing this issue since i dowloaded mozilla in my mac mini, and it just randomly decides to not play audio at all unless i shut all of the tab down and re start the entire browser which is very annoying because i am a video editor and i am working multiple tabs at a time and need audio always and since tabs can't restored in the order they were before closing this is sabotaging my work heavily, i love the browser overall but this specific ruins it because its a basic feature

Hi,

The Firefox browser came through with an update and I found that on Bluesky it is hard to load or see video's, which makes it a slightly pointless exercise.

Previously I have found that after an update (can't recall if it was Chrome, but think it was Firefox) the problems cleared up after a couple of days.

However, that doesn't seem to be happening right now.

Can't think what I should be tweaking at my end.

Hello, I noticed a few times that after waking my computer up from sleep mode, I seem to lose audio from the browser completely. I look into my audio mixer and I do see the browser is giving audio, but I can't hear it through my headphones.

Last time i fixed it, I had to restart my computer and it fixed the issue, but I don't want to continue in having this issue at times. I have also tried restarting firefox by ending it in the task manager and re-opening it, but that doesn't seem to fix it.

Hi team,

I am facing a persistent video playback issue specifically in Firefox (latest version), while the exact same stream works perfectly fine on Google Chrome and VLC player.

When I try to play a high-definition HLS live stream from my network provider site (vraitv.com), the video stalls and buffers every few seconds. Upon inspecting the Firefox Web Developer Console, I notice frequent NS_ERROR_NET_TIMEOUT errors during the loading of .ts video chunks, along with occasional CORS warning flags.

I have already tried the following troubleshooting steps:

1. Disabled Enhanced Tracking Protection for the site. 2. Started Firefox in Troubleshoot Mode (Safe Mode) with all extensions disabled. 3. Cleared all cookies and site cache.

Unfortunately, the issue persists. Are there any hidden settings in about:config (such as modifying network.http.max-persistent-connections-per-server or increasing the media cache size) that can optimize how Firefox handles concurrent video chunk loading?

Any technical guidance would be highly appreciated.