Firefox extension for BigCrumbs

I got a comment in response to my post about BigCrumbs saying there is an extension for Firefox to automate the BigCrumbs rebates. Sounds like a good deal. I haven't used the extension myself.

The CashbackAutomator for Firefox automates your rebates with BigCrumbs. Normally to get a rebate from BigCrumbs you'd have to 1. go to BigCrumbs 2. find the merchant 3. follow the link to the merchant 4. buy stuff at merchant. With the automator all you'd have to do is 1. go to merchant. 2. click on automator 3. buy stuff.