All-in-One Gestures: Execute common commands using mouse gestures, rocker navigation, and scroll wheel navigation.

FoxReplace: Bring up replace field by pressing Shift + F2.

IE Tab: Embeds Internet Explorer in tabs of Firefox.
–Uninstalled. Crashed Firefox during first attempt at use. Mouse gestures aren’t usable in the IE tab the plug-in creates.

Tab Mix Plus: Duplicate tabs, control tab focus, undo closed tabs and windows, manage session.
–Open recently closed tab: Ctrl+Shift+T

Tab Wheel Scroll: Switch tabs by scrolling with the mouse wheel in the tab bar.