Automatically download certain file types to the folders you set. For instance, you can set to automatically download all the .png and .jpg files to your Wallpapers folder, all the .zip files to the Downloads folder and so on. The filters are based on filenames and hosted domain's name.
2. Capture Fox
With this Firefox add-on, you can capture the Firefox window or the whole screen and make screencast videos (it also records your voice). Using it, you can compose tutorials, e-lessons or videos. Unfortunately, this extension does not work on Linux.
3. Bookmark Autohider
Gain some space by hiding the bookmark toolbar until you move your mouse over the area where the toolbar was.
4. Rights To Close
Close the current tab by simply right double-clicking anywhere on the viewing web page.
5. FabTabs
FabTabs is a really smart Firefox extension which will colorize the tabs based on the most used color on a website. By taking a small screenshot of the website you are currently viewing, and calculating the most commonly used color from that screenshot, it tries to take the 1 essential color from the website and applies it to the tab.
6. Greasefire
Automatically finds Greasemonkey scripts for the page you are currently viewing. Right click the Greasemonkey icon and choose the "X scripts available" item to see and install the scripts available for the current page.
7. Incredible Bookmarks
This is one amazing Firefox extension for bookmarks. It allows you to have unlimited customized dynamic bookmark toolbars, bookmark bar keyword search, colored bookmarks for better organization, bookmark-scan for expiry and updates and many more.
Other Firefox extension lists we've posted:
Other Firefox extension lists we've posted: