I know. I already posted a list of Firefox Extensions a few weeks ago. The difference is that those were nearly essential. These are more related to aesthetics and ease of use. Nonetheless, I highly recommend all of them.

1. Search Bar Auto Sizer - This automatically resizes the search bar to match the length of text input.
   
   
2. Search Engine Ordering - Drag and drop search engines in the search bar or alphabetize them. It also makes deleting unused ones quite simple.
   
   
3. Map This - Adds two context menu buttons: Map This and Map To This. They are both links to Google Maps, one for simply mapping a selected address, and the other for bringing up directions from a default location to the selected address.
   
   
4. All Your Maps Are Belong to Us - Automatically convert links from other mapping services to Google Maps. Here is the White House via Mapquest.
   
   
5. URL Fixer - Do you suffer from Fat Finger Syndrome? I do. This extension corrects small annoying errors when typing URLs, like typing .con instead of .com.
   
   
6. Wikipedia Lookup - Adds a right click context menu button for looking up a selected term in Wikipedia.
   
   
7. SourceForge Direct Download - Choose your favorite mirror and this bypasses that annoying step. This is a must have if you use SF regularly.
   
   
8. Copy Plain Text - This copies and then strips text of its formatting for quick pasting. This can be selected as the default copy action.
   
   
9. Screen Grab! - This extension saves an entire webpage, a window, or just the current viewport as a .PNG image.
   
   
10. Box Check - Select a range of checkboxes by shift clicking the first and then the last. It works just like selecting multiple files in windows.