Twitter addicts have found the perfect browser companion in Twitbin. This Firefox extension lets you read and post items from a Firefox sidebar. You can view public or friend listings or choose only to choose D or @ messages. It's very easy to type your updates and Twitbin shows the character count as you type. Auto login avoids you having to reenter your password all the time and you can also set the extension to automatically refresh at specific intervals. Twitbin also features a refresh button you can use anytime.
We were a bit disappointed that Twitbin does not allow you to star or trash items. The side bar can also feel pretty crowded and it's a bit annoying how Twitbin limits the number of updates you can browse. We also found the application slow at times, particularly when logging in and fetching updates.
Still, Twitbin is the perfect way to catch up on updates without opening up the Twitter page in your browser.