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.

Using YouTubeFlash to HTML5 2.9

  • 1 reply
  • 1 has this problem
  • 7 views
  • Last reply by cor-el

Romtom
Romtom
more options

System Mac OSX 10.8.5 - Firefox version 25.0: I deleted Adobe Flasch Player to use the Add-On "YouTubeFlash to HTML5 2.9" - to watch Youtube-Videos, but it doesn't work. Any ideas?

System Mac OSX 10.8.5 - Firefox version 25.0: I deleted Adobe Flasch Player to use the Add-On "YouTubeFlash to HTML5 2.9" - to watch Youtube-Videos, but it doesn't work. Any ideas?

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

If you use extensions (Firefox/Tools > Add-ons > Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure that such extensions aren't blocking content.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.