Themes

Cylence Theme

by Julien Saurin

The original taciturn modification of the Default Theme of Firefox 2.0.

Cylence Theme: Sapphire Variation

by Julien Saurin

Blue/purple recoloration of Cylence for Firefox 2.0.

Extensions

Ctrl Tab Preview

by WizKid

This is an extension that replaces the behavior of Ctrl+Tab (Cmd + Option + Tab on Mac). Instead of directly changing tab it works like Alt+Tab on windows. It shows a preview of the tab and you can directly switch between tabs.

DownThemAll!

by Federico Parodi, Nils Maier, Stefano Verna

The first and only download manager/accelerator built inside Firefox!
DownThemAll is fast, reliable and easy-to-use! It lets you download all the links or images contained in a webpage and much more: you can refine your downloads by fully customizable criteria to get only what you really want!

Fission

by zeniko

Fission combines address bar and progress bar (Safari style).
This extension makes the progress bar more visible and allows for a nice visual effect.

Morning Coffee

by SJML

Keeps track of daily routine websites and opens them in tabs.
This extension lets you organize websites by day and open them up simultaneously as part of your daily routine. This is really handy if you read sites that update on a regular schedule (like webcomics, weekly columns, etc.).

Sidebar on Right

by Anthony Lieuallen

Moves sidebar to the right side of the browser.

Tiny Menu

by Collin Jackson

Replaces the standard menu bar with a tiny menu popup.
NOTE: This extension does not work with Mac OSX, since Mac menus are different from those of other operating systems.