better gmail

If you use Gmail in the “new version” you should take a good look at Better Gmail 2, an interface package put together with Greasemonkey user scripts by Gina Trapani.  Originally available on Lifehacker, it is now an official Mozilla extension for Firefox 3.
Better Gmail 2 offers a number of enhancements, including

Force Gmail to make [...]

Better Gmail is a compilation of the best Greasemonkey enhancements for the new Gmail interface, compiled into one extension. Enhances the new Gmail interface with Greasemonkey user scripts.
Only compatible with the new Gmail interface. Released with Compose in Gmail, Attachment Icons, Macros, Inbox Count First, Force Encrypted Connection, and Show Message Details.
[34.6K] [Win2k/XP + [...]