This isn't in anyway related to the game client or anything in the game at all. It's to help shorten the time it takes to search (because people like me who know nothing of WoW do it 24/7) and to make it more convenient. Please don't flame Only here to help!
Not everyone uses in-game browsers and sometimes need to inquire about things on Mozilla. Instead of the traditional typing out Thottbot: World of Warcraft or even finding it in history/favorites, letting it load, and then searching, Mozillla allows shortcuts in your address bar so you can just type out what you're looking for, like "tb Trueshot Bow" and it'll go to Thottbot -> Trueshot Bow. I know most people either know or don't care for it, I just thought it'd be somewhat helpful to those that don't know just already.
Steps
1. Make sure you have the Bookmarks Toolbar checked for now(go to the bar with File/Edit/etc and right click and click on Bookmarks Toolbar). You can turn it off later and this will still work.
2. In your Bookmarks Toolbar, right click and select New Bookmark.
3. Put in the following info:
Name: Whatever name you want. ie - Thottbot
Location: The location of the site you want (see below)
Keyword: whatever shortcut you want. ie- tb
Description: not necessary.
4. Press okay, and all you need to do now is type out shortcut and then the thing you're searching for! (ie - tb Trueshot Bow)
Locations(Right-click,copy & paste these into Location)
Thottbot
http://thottbot.com/?s=%s
Allakhazam
Allakhazam.com: World of Warcraft: Search: %s
WowWiki
%s - Google Search
WowHead
%s - Wowhead Search