Twitter Apps

Power Twitter by 30 Boxes - Firefox plugin to enhance Twitter. Allows for sharing photos and video, revealing (or unwinding) TinyURLs and a bunch of other stuff.

Twitter Line - headline toolbar for Firefox. Displays Tweets as a headline ticker.

twitkit - very nice Firefox extension that works with Windows, Mac and Linux. A little bit like Twitbin, but loads more attractive. Refresh intervals from 30 seconds and customisable. What more could you ask for?

TwittyTunes - Firefox extension that works in conjunction with Foxy Tunes. Tweet the songs you are listening and also websites you are browsing.

Twitzer - cheat the 140 character limit with this Firefox extension.

Twitterbar - Firefox extension which allows you to post to Twitter directly from your Firefox address bar.

Twitbin - Firefox extension that puts a Twitter sidebar in your browser.

Twitterfox - Firefox add-on for Twitter. You get a little icon on your status bar that when clicked lets you read new Tweets and send them. Less obtrusive than other Twitter clients.