27
9
Whenever I go fullscreen in html5 things it puts a message at the top saying you're now in fullscreen, the problem is that this message totally stops you being able to do anything else until it disapears. So if I open a youtube video in fullscreen I can't pause it or do anything until I wait for the message to disapear. How can I disable the message totally?
Levi H
Posted 2013-06-30T11:41:48.340
Reputation: 516
43
This is the security feature, but yes it's annoying if you're on trusted site and the message popups every time you enter full screen.
Solution: enter about:config in address-bar, and search for full-screen-api.approval-required and set it to false
You're done!
Shah Zor
Posted 2013-06-30T11:41:48.340
Reputation: 596
5It would appear that the OP's username has become prophecy. – Coldblackice – 2015-05-14T02:55:14.513
I think this feature is very annoying, so I disabled it, thanks for the tip – Sergio Abreu – 2015-10-12T02:40:42.073
1full-screen-api.approval-required preference no longer exists. – user598527 – 2017-08-22T08:19:15.897
Sorry for accepting the answer late. It only took me 4 years 7 months. – Levi H – 2018-05-17T11:22:50.660
8Removed the annoying warning without so much as a restart. @Lost you may want to accept this answer. – Lilienthal – 2013-11-10T23:57:36.490
12
UPDATE: OCT-2019 to cover Firefox Quantum:
Enter about:config in Firefox address-bar and search for the keyword "full-screen". Identify following listing and change their respective values as mentioned against them below:
full-screen-api.transition-duration.enter - 0 0
full-screen-api.transition-duration.leave - 0 0
full-screen-api.transition.timeout - 0
full-screen-api.warning.delay - 0
full-screen-api.warning.timeout - 0
(Archival Notes) FireFox 42
Option "full-screen-api.approval-required", no longer hides the Website is Now Full Screen warning. In previous versions setting it to "false" could resolve the problem. They are putting a new option in i.e. (full-screen-api.warning.timeout "0") that will do the same thing, but it will be rolled out in FireFox 43.
You can change the fade in/out animation when going full-screen by setting:
full-screen-api.transition-duration.enter 0 0
full-screen-api.transition-duration.leave 0 0
Note/Warning - Defaults are 200 200 and 0 0 will remove them completely.
Keep in mind these are put in because they are a security features to help stop Phishing Attacks. So either wait till Firefox should enable "full-screen-api.warning.timeout" option in next few releases OR use above at your own risk...
Amit Verma
Posted 2013-06-30T11:41:48.340
Reputation: 256
Creating a userChrome.css file, was the only method that worked for me - all others failed. – tahwos – 2015-11-28T17:49:03.023
Didn't work for me – Alph.Dev – 2015-12-02T09:30:42.710
2I'm getting tired to track these kind of config changes… they happen more and more often. – Gras Double – 2015-12-13T11:32:14.477
5Firefox 43 is Out and setting "full-screen-api.warning.timeout" to 0 (ZERO) is working well.. Try it out!!! – Amit Verma – 2015-12-16T19:03:01.563
Thanks for this, the answer above should reflect this change too, since it's basically useless now. – SomeNickName – 2015-12-18T13:17:36.407
Doesn't work, both full-screen-api.transition-duration.enter and full-screen-api.transition-duration.leave are set to 0 0. full-screen-api.warning.timeout to 0 does work in Firefox 55. – user598527 – 2017-08-22T08:18:31.170
Here in 2019, I think the functionality has changed. I still see the notification, and under certain conditions, it stays on top of the video full screen, which is distracting. – YetAnotherRandomUser – 2019-10-07T12:50:20.357
@YetAnotherRandomUser, I've made changes to my answer to reflect with Firefox Quantum. Hope it helps.. – Amit Verma – 2019-10-08T13:41:50.363
0
Since Firefox 43 (still working in 59)
1) enter about:config in address-bar
2) set full-screen-api.warning.timeout to 0
janot
Posted 2013-06-30T11:41:48.340
Reputation: 946
1For Firefox version 43 onward the options are changed (refer to my comment below) – Amit Verma – 2015-12-16T19:04:35.413