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.

disable "youtube.com is now fullscreen" message

  • 2 replies
  • 6 have this problem
  • 1 view
  • Last reply by 400thecat

400thecat
400thecat
more options

When I switch YouTube video to fullscreen, this message pops up: 

 "youtube.com is now fullscreen. Exit fullscreen (Esc)"

after having seen this evil message ten thousand times, I think I understand that I can exit with Esc, and I don't need to be reminded again.

How can I disable this evil feature on Firefox 45 ?

I have tried setting 

 full-screen-api.approval-required to false
 full-screen-api.transition-duration.enter to 0 
 and full-screen-api.transition-duration.leave to 0

none of these help.

When I switch YouTube video to fullscreen, this message pops up: "youtube.com is now fullscreen. Exit fullscreen (Esc)" after having seen this evil message ten thousand times, I think I understand that I can exit with Esc, and I don't need to be reminded again. How can I disable this evil feature on Firefox 45 ? I have tried setting full-screen-api.approval-required to false full-screen-api.transition-duration.enter to 0 and full-screen-api.transition-duration.leave to 0 none of these help.

Chosen solution

Hi   !

Changing the settings for this in   'about:config'   stopped working   (I think)   after   FF 41.
But would you take a look at this:
www.ghacks.net/2015/08/24/mozilla-improves-firefoxs-full-screen-handling/

Read this answer in context 👍 4

All Replies (2)

Happy112
Happy112
more options

Chosen Solution

Hi   !

Changing the settings for this in   'about:config'   stopped working   (I think)   after   FF 41.
But would you take a look at this:
www.ghacks.net/2015/08/24/mozilla-improves-firefoxs-full-screen-handling/

400thecat
400thecat Question owner
more options

thanks, setting full-screen-api.warning.timeout to 0 solved the problem