More Firefox extension reviews by collaborators (with links)

Nuke anything anhanced – by Otto de Voogd
Firefox Addons Contest on Squidoo – by Otto de Voogd
Greasmonkey - by Otto de Voogd

FEBE (Firefox extension Backup Extension) – by Ken Saunders
MT Tech Local Install guide – by Ken Saunders

Extend – by Jackie Liu
(It hosts several reviews. Just 3 to start with: IE Tab, Add-Block plus, StumbleUpon)

CoLT- by ffextensionguru
Splash - by ffextensionguru

Woot watcher – by Ryan
Smart Bookmarks Bar – by Ryan
Google toolbar 3 – by Ryan

Scrap book – by ff1986

Just two extension reviews by Mozilla links:
Breadcumbs
All-in-Search

Add-to-Sidebar by Admiralfreak