Rated 5 out of 5 stars

WARNING
Big conflict between foxlingo 2.7.2 and FIREBUG 1.7.3 add-on.

TEST
When you start firefox 4 or 5 with those two add-ons, firefox.exe is at a constant 50% CPU usage rate until you do an action such as browse another web site.

I'll disable foxlingo until it's fixed because I favor having firebug always enabled.

This review is for a previous version of the add-on (1.7.3).