Rated 2 out of 5 stars

Well, this looks like a pretty good Add-on. BUT, on my PC [WinXP Pro, DuleCore, @g Ram... it won't install. Msg: TB could not install the file at: file:///C:/Doc%20 and... /colored_diffs-0.4.2-tb.xpi, Because: Not A Valid Install Package -207. I have no idea what that means but I will try again for the 3rd time. I'm Not Impressed!

This review is for a previous version of the add-on (0.5.171).