Usual blip Rated 5 out of 5 stars

I just tried the solution given and it works.

Presumably the problems are due to Youtube constantly changing the code required to access the videos

Cheers

This review is for a previous version of the add-on (1.5). 

Minor work around Rated 5 out of 5 stars

Firefox 3.6.3 - Yes it works, providing the video has been loaded to the flash video display sub-window

This review is for a previous version of the add-on (1.3).