Detaching google account from browser/wiping browser?

[Matthew]

Run firefox, press the alt key, click the tools menu, select options. On the options screen, choose the privacy tab. Click on clear your recent history. On the clear recent history window, change Time range to clear to Everything, click on the details button and check all the boxes, particularly Cookies, Cache and Active Logins and click Clear Now.

I hope this helps.

Here's a screenshot: http://i.imgur.com/oBTUiof.jpg