# Ubuntu 16.04 streaming video has no sound

This is what I have installed: Ubuntu 16.04 dual boot with Windows 8.1, FF 60.8.0esr, My sound for streaming video does not work, tried with YouTube, no sound, but my local files (video & audio files play fine). I had previously problem with missing items in my desktop, had to run this command to get back

sudo apt-get install ubuntu-desktop


How can I fix this problem? Already tried to remove/install ubuntu-resctricted-extras and pavucontrol.

• Sometimes firefox automatically mutes itself and you have to go and raise the volume for each video. When this happens, you have to go to System Settings > Sound > Applications and then turn up the volume for firefox there. Here is a post on how to fix that: askubuntu.com/questions/908262/… see also: askubuntu.com/questions/967061/… Just keep in mind that if you delete your firefox profile, you will lose all of your bookmarks and passwords so make a backup! – mchid Jul 29 '19 at 21:05
• Thanks so much for pointing me out to this problem, I was thinking that I'll need to reinstall again (it's already 4th time I'm doing it due to mistakes/not knowing well Ubuntu and end up messing up with the OS. – Michael Jul 30 '19 at 7:37
• Awesome, which one solved your issue (so that we can mark this as a duplicate)? Did you edit the about:config or did you delete your firefox profile? – mchid Jul 30 '19 at 7:39
• I think when I was trying to fix broken packages, somehow FF muted my sound, I just wen to System Settings > Sound > Applications and then "un-mute¨ it, that's all. – Michael Jul 30 '19 at 19:43
• You can post that as an answer to your own question. You can mark your own answer as the accepted solution after the answer has been posted for a couple of days. – mchid Jul 31 '19 at 3:14