I am unable to play youtube videos on Firefox after the updates. Firefox works great with Facebook but can no longer play videos there. I have down loaded adobe flash player it wont work either I dont know what else to do. I have windows 7. Please help.
Do you see the Flash plugin on the Tools > Add-ons > Plugins and the about:plugins page?
Does the Flash test site confirm that the Flash player is installed?
The latest Adobe Flash plugin adds a 64-bit player as well as the standard 32-bit player. Youtube seems to set a cookie that conflicts with the 64-bit version and therefore causes you to see a black screen when trying to play videos. The following steps should fix your issue if it is related to this update:
You should now be able to play Youtube (and presumably) other videos again. Doing this worked for me anyway...
This is a Flash player issue - I uninstalled the latest Flash Player and reinstalled Flash 10.3 and everything seems to be working again.
(Youtube videos were just coming up as a black box with a play button - when I pressed this I got the message "An error has occurred - please try later"