All Time Favorits
About this Collection
Makes web surfing easy, clean, and safe.
8 Add-ons in this Collection
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
See who’s tracking you online and protect your privacy with Ghostery.
United States English Spellchecker for Firefox, Thunderbird and SeaMonkey by Kevin Atkinson and Geoff Kuenning.
To enable, right-click in a multi-line text box, select "Languages", then "English (United States)".
Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.
SearchWP by Georges-Etienne Legendre, Robert Katić, others
Jump-to-word buttons and highlighting for the search box content
Connect securely to https websites by checking certificates with network notaries. See http://www.perspectives-project.org
Firefox 3 lets you tag your bookmarks, but it doesn't give you a great way to browse your bookmarks by their tags. TagSifter tries to. Select a group of tags in the sidebar or menu, and TagSifter shows you all the related tags and bookmarks. Or searc...