TubeStop
My latest browser extension, TubeStop, is an extension for Mozilla-based Web browsers that disables the autoplay on YouTube.com videos. This means that you can open YouTube videos in multiple tabs without them all starting to play at once.
Currently, this extension only works on videos at YouTube.com, not on YouTube videos embedded on non-YouTube.com websites with autoplay enabled.
TubeStop is compatible with Firefox 1.5 - 2.0.0.*, the latest Flock builds, and Netscape Navigator 9.0. If you're having trouble using the extension, you can either e-mail me at cfinke@gmail.com or leave a comment below.
You can install TubeStop 1.0 from the TubeStop homepage.

Christopher Finke is a software engineer. He is available for birthday parties and bar mitzvahs. 

May 21st, 2007 at 3:54 am
Sounds like a great extension. I've gone ahead and dugg it.
October 11th, 2007 at 11:26 pm
thank you
June 7th, 2010 at 10:21 pm
I LOVE it!! thnx a ton for this gr8 extension..
btw I wonder if there is an extension that could disable auto-play of featured videos (when we visit somebody else's channel)