Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.
Minimum and fast URL blocker.
Search with Joy! Block Ads While Surfing!
Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.
Adds an about:addons-memory page that details add-on memory usage
Keep a list of your important todo list in one place.