Add-ons

QuickNote by Leszek Życzkowski, Jed Brown, others

A simple note-taking extension.

Session Manager by Michael Kraft

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Speed Dial by Josep del Rio

Direct access to your most visited websites

Mozilla Archive Format, with MHT and Faithful Save by Christopher Ottley, Paolo Amadini

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Save Images by Lumox

Save Images saves the images from the current tab page, from the cache, to a specified location, with either the images original file name or a file name that you specify.

AutoCopy by Autocopy, Michael Lidman

Select text and it's automatically copied to the clipboard. Also pastes on middle click.

Browser Backgrounds by Baris Derin

Browser Backgrounds is the new Firefox extension that lets you install backgrounds directly on your browser.

Hide Menubar by yuoo2k

Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.

File Title by JasnaPaka

With this extension you can save HTML pages like in Microsoft Internet Explorer. Default filename is generated according to HTML tag TITLE.

Rainbow Colored Gumballs by Lisa At The Beach