Himdel's addon collection - stuff like del.icio.us, fast dial, firebug, flashblock, snap links, open in browser, tab history
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...
Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)
Visual bookmarks for Firefox. (Works with all latest versions of Firefox)
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
AutoAuth automatically submits HTTP authentication dialogs when you’ve chosen to have the browser save your login information.
Offers the possibility to display documents in browser window.
Note from Mozilla: This add-on has been discontinued. Try Snap Links Plus instead.
Snap Links allows users to easily open multiple links in new tabs by drawing a box around them.
New tabs retain the session history of the originating tab. Links opened in a new tab won't have a blank history, but one that is populated from the "parent"...