wasavi is an extension for Chrome, Opera and Firefox. wasavi transforms TEXTAREA element of any page into a VI editor, so you can edit the text in VI. wasavi supports almost all VI commands and some ex commands.
Add-Art is a Firefox plugin that replaces ads on websites with art images.
Multifox is an extension that allows Firefox to connect to websites using different user names. Simultaneously!
Adds some utility functions that make the life with DataPilots easier: Display the current source range for a DataPilot Change the source range for a DataPilot Refresh all DataPilots on the current sheet
Firefogg video encoding and uploading for Firefox
FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!