Rated 5 out of 5 stars

[Firfox v. 4.0.1] I love this! ...Once I figured out where the URL shortener button was (It's on the bottom right hand corner). It would be great if that information was displayed in the add-on info. Other than that.... must have.

Thanks for the advice. I've added a Hint on the add-on info.
Soon i'll be releasing a new version with improvements regarding the URL monitoring. Thanks again.