In my opinion the most complete collection of add-on. This contain at least one add-on for every task you'll be doing in your browser . Selected after years of practice and experience with Firefox
Detects Duplicate Bookmarks when bookmarks are added and specify where is the previous URL. You can also search and delete duplicates URL already in your Bookmarks.
Firefox 13 support is available from http://bookmarkdd.mozdev.org in version 1.1.1.
The cure for tabitis
If you keep tons of tabs open because you want to continue reading them later, Taboo is for you. Taboo lets you save a page for later (taking a screenshot, and using the Session Saver code to remember scroll location and form f...
Collections are groups of related add-ons that anyone can create and share.Explore Collections