Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Youtube displays black screen when trying to fullscreen

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by TyDraniu

brian.t.dussault
brian.t.dussault
more options

Whenever I try to fullscreen a Youtube video, it just displays a black screen. It is not temporary, and the picture never loads in. I have tried the full-screen-api solution. Didn't work. I tried deleting my cache and cookies. Didn't work. I tried disabling hardware acceleration. Didn't work. I restarted my machine twice, and that didn't work And I am on the most recent version of Firefox.

Whenever I try to fullscreen a Youtube video, it just displays a black screen. It is not temporary, and the picture never loads in. I have tried the full-screen-api solution. Didn't work. I tried deleting my cache and cookies. Didn't work. I tried disabling hardware acceleration. Didn't work. I restarted my machine twice, and that didn't work And I am on the most recent version of Firefox.

All Replies (1)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

They have an issue with a theater mode. Switch to normal mode.