Firebug 2.0.6 No Restart
by Joe Hewitt, Jan Odvarko, robcee, FirebugWorkingGroup
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...
This add-on is not compatible with your version of Firefox because of the following: