Add-ons

DownThemAll! by Nils Maier, Federico Parodi, others

The first and only download manager/accelerator built inside Firefox!

FlashGot Mass Downloader by Giorgio Maone

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

User Agent Switcher by chrispederick

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Brazilian Portuguese Dictionary (New Spelling) by jhltmnn

The same spellchecker shipped with the Brazilian version of Firefox.

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.

NoRedirect by Kai Liu

NoRedirect lets the user take control of HTTP redirects. It can be used to interdict an ISP's DNS search redirection hijacks, preview/screen "shortened" URLs (e.g., TinyURL), stop the annoying redirection of "smart" error pages, etc.

StartupMaster by htamas

Asks for the master password at startup (fixes multiple password prompt)

United States English Spellchecker by jooliaan

This dictionary is no longer maintained. Use this dictionary instead.

Private Tab by Infocatcher

Adds private tabs.

about:addons-memory by Nils Maier

Adds an about:addons-memory page that details add-on memory usage

Fox Web Security by Oleksandr

Protection from adult content (parental control) and from dangerous sites.
Entrust protection for yourself and your children to professionals!

Restart application by Julien Fray

Restart the application with one click (or Ctrl Shift Z)

Samantha Hensley 1 by teenybgirls