Aside from being able to do most tedius things like RT faster, the Troys script allows you to follow your friends’ tweets closer with functionalities like name expansion, URL expansion, searchbox, and a whole lot more.
If you like to twitter via the web and Firefox, I highly suggest you give Troys Twitter Script a try.
Troy’s Twitter script, in our opinion, is crazy awesome. If you find yourself in a memory crunch and prefer not to use a standalone Twitter application, and use Firefox, this script is a must-have. In fact, it’s too bad that Greasemonkey scripts really only work well in Firefox, because it sure would be great to have all these features in every browser out there. To that end, you can try using Greasemetal (covered here) for Chrome, or GreaseKit for Safari on Mac OSX.