I had and now I still have firebug installed on firefox. The problem I have, and I do not know how it used to be; but when I ran my Selenium Webdriver code (the firefox browser would be openned) and hit F12 the firebug/firepath would be available.
Am I wrong on this thought?
Now I have to open a separate firefox browser, and when I fit F12, I do get the firebug and firepath.
My thought is that I added some "add-on" that disabled firebug on a selemium webdriver test browser page.
I can't find a way to list the installed add-ons in firefox. Do you know how?