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

You tube clips are stalling and freezing erratically and controls are not working. Sound plays but video is often delayed - why is this?

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by FredMcD

more options

I have a PC using windos vista business, never had a problem with it using fire fox until very recently when You tube will now not play properly. Grateful for any assistance. Regards Richard

I have a PC using windos vista business, never had a problem with it using fire fox until very recently when You tube will now not play properly. Grateful for any assistance. Regards Richard

All Replies (1)

more options

If you have problems with current Shockwave Flash plugin versions then check this:

  • see if there are updates for your graphics drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

  • disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also: