So what plugins do you use?

My set:
1. AdblockPlus{1.1.1}.xpi -- Ads were yesterday!
2. Cooliris{1.11.5}.xpi -- Cooliris transforms your browser into a full-screen 3D Wall for searching, viewing and sharing the Web.
3. DafizillaViewSourceWith{0.5.1}.xpi -- View page source with external applications
4. DownThemAll{1.1.7}.xpi -- The mass downloader for Firefox.
5. EnglishAustralianDictionary{2.1.1}.xpi -- I'm sick of all my favoUrite coloUrful language being marked incorrect.
6. ExifViewer{1.51}.xpi -- Extracts and displays the Exif (Exchangeable Image File), IPTC-NAA/IIM (International Press Telecommunications Council / Newspaper Association of America / Information Interchange Model), and IPTC Core (Adobe XMP, Extensible Metadata Platform) metadata, as stored by digital still cameras, in both local and remote JPEG images.
7. FEBE{6.3.2}.xpi -- Backup your Firefox data
8. Firebug{1.4.5}.xpi -- Web Development Evolved.
9. FxIF{0.3.2}.xpi -- View EXIF data in image properties
10. GoogleToolbarforFirefox{6.1.20091119W}.xpi -- Take the power of Google with you anywhere on the Web!
11. HistogramViewer{1.1.0}.xpi -- Generates the histogram of a selected image.
12. IEView{1.4.5}.xpi -- Open pages in IE via Firefox menus
13. LiveHTTPHeaders{0.15}.xpi -- View HTTP headers of a page and while browsing.
14. LogMeInInc.RemoteAccessPlugin{1.0.0.464}.xpi -- (none)
15. NetUsageItem{1.2.241}.xpi -- Displays your internet usage on the toolbar.
16. SQLiteManager{0.5.6.1}.xpi -- Manage any SQLite database on your computer
17. TabMixPlus{0.3.8.2}.xpi -- Tab browsing with an added boost.
18. TamperData{10.1.0}.xpi -- View and modify HTTP/HTTPS headers etc.
19. UserAgentSwitcher{0.7.2}.xpi -- Adds a menu and a toolbar button to switch the user agent of the browser.
20. WebDeveloper{1.1.8}.xpi -- Adds a menu and a toolbar with various web developer tools.
21. deskCut{0.6.0.0}.xpi -- Create desktop shortcuts from the context-menu. Windows and Linux (KDE/GNOME) supported.

Themes:
1. Noia2.0eXtreme{3.71}.jar -- Fully skinned based on Noia icon set.