I've been using the Firefox Shareaholic browser add-on to post links quickly to my twitter account, and am very happy with it. Recently, however, my company has tasked me with updating our corporate twitter account too.

Unfortunately, it doesn't seem to offer the ability to register multiple twitter accounts and let you select one when you tweet the current page. I'm looking for suggestions on a browser add-on for Firefox to do just this.

Just to be clear, I'm not looking to be able to post a single link to multiple twitter accounts at one time. I just want a one click "twitter this" that lets me pick which account to post it to.

Bonus: If you know a workaround to do this in Shareaholic, that would be even better.