Worked Somewhat on U3 Drive Rated 5 out of 5 stars
This is the only one that has worked on my U3 Thumb drive for Firefox 10.0.2. Don't ask me how as I had tried ALL the manual tricks all these extensions do. I'm baffled.
I used this as a last resort as none of the other compatibly tricks worked. I had tried Add-on Compatibility Reporter (even though it's not needed anymore since ver 10) I also tried Nightly Tester Tools.
It did not make them all compatible but thank you for the few that this extension actually Did made work