Firefox Community Forum

I get 'you browser cannot play this video" when I try to watch NFL Sunday Ticket on Youtube; what causes this? I use Linux Mint on my laptop.

I also have Opera browser installed; I get the same error using Opera.

Please help. Thanks.

Started OBS Vitrual Camera option. in Firefox the camera is no listed.

https://webrtc.github.io/samples/src/content/getusermedia/gum/

only shows phyiscal cams.

How can virtual cameras listed in Firefox?

``` $ v4l2-ctl --list-devices --all OBS Virtual Camera (platform:v4l2loopback-000):

       /dev/video0

SandbergCapture: SandbergCaptur (usb-0000:07:00.0-1):

       /dev/video1
       /dev/video2
       /dev/media0

```

but OBS Virtual Camera is not listed

this exact question has been asked last year, none of the suggestions work: I am running Firefox 154.01 on Winux I have lost sound on Firefox. I have opened the same sites in Chromium and the sound is working fine. It's only in Firefox. I have tried several sites including , YouTube, and radio programs, no sound from Firefox. All of a sudden the sound disappeared. The speakers is turned on the volume is up, just not a sound from Firefox. What to do? Right now I had to switch over to Chromium

Media resource could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_DECODE_ERR (0x806e0004) Details: virtual mozilla::MediaResult mozilla::FFmpegVideoDecoder<62>::DoDecode(mozilla::MediaRawData*, uint8_t*, int, bool*, mozilla::MediaDataDecoder::DecodedData&): avcodec_send_packet error: Unknown error occurred

after 8 hours of youtube.com videos of the chosen video stopped 30 minutes before end how do I prevent broadcast from stopping in middle of video; is there a memory issue or function command to extend broadcast or notification when near limit

YouTube videos are playing choppily in Firefox. The video frequently stutters/freezes or does not play smoothly, even when the same videos work normally in another browser. I have restarted Firefox and my device, but the problem continues. I would like help identifying whether the cause is hardware acceleration, Firefox extensions, graphics drivers, or another Firefox setting, and I would appreciate step-by-step troubleshooting instructions.

Please provide clear, step-by-step troubleshooting instructions to identify the cause of the problem and explain how to fix it. If possible, include the Firefox settings I should check and any tests I can perform to determine whether extensions, hardware acceleration, graphics drivers, or network settings are responsible.

Hello I am using Google Flow on my Linux PC and when going to edit scenes I get an error about a missing Codec. If I use Brave browser works fine so this makes me think this is not an OS issue but browser.

I usually watch videos on Firefox on Stan - https://www.stan.com.au/account/login - with no problem on Debian. Just wondering if this is a fault with Firefox on FreeBSD, so I know where to go looking for the problem. Other outlets have sub par performance, also, such as YouTube, where the video comes up but plays like it's operating at one frame/5 seconds, with no sound. Thanking you for any time and trouble.

Greetings. I am on Ubuntu Linux OS. Trying to run WhatsApp, I only have a web based option. Messaging, photos, works well, but no Audio. Desktop Speakers and Mic are ON (tested). No "speaker tab" on Firefox. Help!

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.

Firefox decided to not play any sound on my laptop, Spotify works on itself, if I open it in Firefox it doesn't. Same with YouTube and everything else. I use Artix Linux, I double-booted with Windows and it works on it, just not on Artix for some reason. I have tried to allow acces to it, even redownloaded everything, nothing worked. It's not the biggest problem, since there are subtitles, but it would be good if it worked.