1345259 - Fullscreen does not work recently

Status: RESOLVED DUPLICATE of bug 1346166

(Firefox :: General, defect)

Description

[Kokujou]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170306030205

Steps to reproduce:

If you click on the Fullscreen Button of a video it just doesn't respond..
it happens on several sites but not all! youtube is OK and if i go to the video file without being embedded in a player (xxx.xxx/xxx.mp4 e.g.) it works too
it happened with an update but sadly i don't know since when it didn't work anymore.

Comment 1

[Loic]

Could you provide a video link to test, please?

Does it work for you?
https://www.w3schools.com/html/html5_video.asp (it works for me with FF55)

If not, can you test with a fresh profile:
https://support.mozilla.org/t5/Install-and-Update/Use-the-Profile-Manager-to-create-and-remove-Firefox-profiles/ta-p/2914

Comment 2

[Kokujou]

i would but i'm not sure if providing such links is okay i mean it's online streaming. isn't this prohibited?

plus... it works with chrome maybe this is a hint. when it comes to addons i have adblock, ublock, flashgot and youtube HD

your video works... which is crazy i really thought it is about HTML5

but i hope to tell you the video platform isn't prohibited: likeafool.com

Comment 3

[Kokujou]

push?