A collection of great Add-ons that i would like to use, mostly complementary ... only one Firefox is not enough.
Picozu Shooter is a Mozilla Firefox browser extension, which allows you to take a screenshot of a given browser page, or a specific region of it and save it to a file, clipboard or Picozu Image Editor.
Keep your favorite Extensions synced with all your computers.
You can choose items displayed in the sidebar.
This extension did not work in MacOS X.
Note from Mozilla: This add-on has been discontinued. Try DragIt instead.
Allows you to open links in new tabs, and do more with drag and drop gestures easier.
Add Unsorted Bookmarks Folder to Bookmarks Menu
Move tabs into the titlebar in a normal (restored) window.
This splits the content area of the browser window as you like.
Personalize your Firefox Title Bar! Anything placed on Menu Bar will be moved to Title Bar.
A tree of the bookmarks is displayed under search results of the sidebar bookmarks.
A location of the bookmark concerned is shown on the tree when you choose a bookmark of search results.
Creates a formatted page from bookmarks.
（alt. "BookmarksHome" for Firefox1.5）
Creates an HTML link to the current page using the selected text and copies it (into the clipboard) for pasting into other applications.
The about:me page provides a fun way to see personalized patterns and trends in browsing history.
Changes the selected search engine in the search bar by scrolling the mouse over the searchbar or search context menu. Also supports keyboard shortcuts ctrl+k and ctrl+shift+k to change the search engine with the keyboard.