Must Have Firefox Extensions

I recently started using Mozilla (shy). Before I used to use Netscape & Maxthon. I don't like Internet Explorer due to its security holes and damn those annoying toolbars..well may be useful to some others but not to me. The worst thing.. i installed Internet Explorer 7.01, it was working fine but when i upgrade it to 7.03, it crumbled. Now i can't use Internet Explorer in my computer and .. i don't have time to look after the problem also...I had heard alot about Firefox... and one day i stumble into one article 'Firefox for webdevelopers', i was so impressed i downloaded it and here i am.

There are some Must Have Firefox Extensions i liked the most.
1. Dom Inspector
2. Web Developer
3. Greasemonkey
4. Mouse Gestures
5. Tab Mix Plus
6. IE Tab
7. Opera Tab
8. Del.Icio.us
9. Sage
10. Performancing
11. Minimize To Tray
12. Fasterfox
13. Gmail Space
14. Image Zoom
15. QuickNote

More: Search for Better... Continues ..

I like the Mozilla Framework and may be someday.. may be.. i will make my own Firefox Extension.