This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

After Firefox update to 40.0, Youtube started using HTML5?

  • 5 svar
  • 10 har dette problemet
  • 6 views
  • Siste svar av philipp

more options

Because I want video quality options, I want to go back to flash player. How to restore it back to flash? If possible without addon?

PS: There is no button on youtube.com/html5 to choose between flash and html5

Because I want video quality options, I want to go back to flash player. How to restore it back to flash? If possible without addon? PS: There is no button on youtube.com/html5 to choose between flash and html5

Endret av Eshant

Valgt løsning

ok, if it cannot be solved with the html5 player then maybe an addon like the following will help: https://addons.mozilla.org/firefox/addon/youtube-flash-video-player/

Les dette svaret i sammenhengen 👍 5

All Replies (5)

more options

hi ezee, when you go to https://www.youtube.com/html5what does this site tell you about supported features in the browser?

more options

Hi Philip,

Here is screenshot

Endret av Eshant

more options

thanks. can you look into about:config and change media.mediasource.enabled & media.mediasource.mp4.enabled to true - then youtube should offer you all playback options...

more options

Not much has changed Screenshot Still, HTML5 giving two options 360 or 720p. Both values are true now. I have toggled only media.mediasource.enabled.

more options

Valgt løsning

ok, if it cannot be solved with the html5 player then maybe an addon like the following will help: https://addons.mozilla.org/firefox/addon/youtube-flash-video-player/