Firefox-ios: [useragent] YouTube Videos can’t played in fullscreen due to UA on iPad

[F3000]

Please see the error message in the attached photo :

[muhasturk]

Could you please post the video url? It seems error depends on web page embeded youtube configuration you visit.

[F3000]

Trie this one : https://www.youtube.com/watch?v=6pXYQ5gaPuk

[muhasturk]

It can be opened in fullscreen mode. If some embedded youtube videos did not opened fullscreen mode, because of web developer configured their iframe without allowfullscreen attribute.

So this issue is not related Firefox and can be closed.

[F3000]

I don’t think that every video producer out there did this . Every video I watch it’s the same .

Can you send me a video that I can watch in fullscreen please ?

[muhasturk]

I can watch your posted video url in fullscreen mode. If you can't please send video that shows you could not watch in fullscreen mode in Firefox to prove it.

[F3000]

Is that proof enough ?

https://gofile.io/?c=DvzAAa

[muhasturk]

Can please share your device model, OS version and Firefox version?

[F3000]

FF 20.2 on iPad Pro 2018 , iPad os 13.2.3

and on

FF 20.2 on iPhone 11 Pro . iOS 13.2.3

[yusadogru]

Fullscreen mode activate after change customUserAgent to "Mozilla/5.0 (iPad; CPU OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15" from "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15) AppleWebKit/605.1.15"
On iPadOS user agent is same as on MacOS (iOS 13) :( Also this issue discussed in apple developer forum. (https://forums.developer.apple.com/thread/119186)

cc: @garvankeeley

[muhasturk]

@garvankeeley This problem still exist, could please provide detail about it?

[garvankeeley]

I am now seeing the issue also, on iPad the button to go fullscreen is not available.

[dnarcese]

Some things I found after a bit of investigation:

• on iphone safari, request desktop site on youtube - the video automatically goes to fullscreen and wont even play if it is minimized, as soon as you click play it maximizes
  
  
  
  • Fx also does that on iphone
  
  
• on ipad safari, you can play youtube video minimized and fullscreen
• adding version and removing fxios/ in user agent did not fix the fullscreen problem
• safari UA when requesting desktop site is same as the Fx ipad default
  Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15

[yusadogru]

if we use (iPad; CPU OS 13_3 like Mac OS X) instead of (Macintosh; Intel Mac OS X 10.15) on iPad, we can play youtube video fullscreen.

Mozilla/5.0 (iPad; CPU OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/18.0 Mobile/15E148 Safari/605.1.15

[nbhasin2]

Hi @yusadogru, thanks for finding the user agent that works with full screen youtube. However the useragent with "iPad" takes the user to mobile website of youtube

[yusadogru]

Hi @nbhasin2, i know this ua for mobile. But only work fullscreen like this :(
Ps: I guess Chrome uses ua with “iPad” :)

[csuciu]

Verified as fixed on latest master and Beta v24.0(17528). Youtube videos can be played in full screen.