This script adds some extra features under the account header links on MTurk's site. New features include displaying of your transfer balance along with Worker ID.
UPDATE:
There is a better version of this by another user located here: https://greasyfork.org/en/scripts/3251-mturk-expanded-header-cached the version I have posted will do a page request every time you load an mturk page in the browser. The other version only does a load every 5 minutes, which can be changed. I suggest using that one instead of this one if you're a heavy mturk user.
