WowAce

Automatically leaves the global channels when inside an instance/raid and restores them when exited.

Displays classes and specialisation dependent stat priorities provided by icy-veins.com

Leveling guides for trade skill professions.

Adds pipes which can control arbitary other statuses (like toggle status on key or "in combat"-state).

opens/closes all bags when at merchant (instead of only the backpack)

Simple and clean Death Knight displays

Angry Boss Reminders helps raiders switch to the proper talents, glyphs, and gear for each boss during a raid.

Keeps track of time played and rested XP across your characters.

Toggle Windowed Mode with click or keybind.

FuBar_RLAssistFu

Centralised management hub for small tweak, interface and utility addons.

Helps you automate selling stuff

Provides quick notification (sound and visual) of your tanking status of your current target. Meant for tanking.

HazLoot

A library to help with localization of Archeology dig sites

Customize the appearance of the chat bubbles.

FuBar_VolumeFu

Captures chatframe Tradeskill Links for later reference in an easy to read format

WhiteboardNG

Right-click on minimap blips to open a targeting menu (out of combat).