NoScript is at the top of the list, followed by Dr. Web Link Checker and Finjan Secure Browsing.
Oof. Looks nice, but with a pink hat on?! Sheriff Firefox looks better than that >:P.
My favorite two are probably Web Developer and I think maybe ShowIP. I probably use those two more than any others.
"Sure, I'll take the advice of someone with no background in IT training. lol"
Favourites - dead heat TPM & AIOS
Indispensable - Noscript by a nostril to ShowIP