I love the spirit of this extension - but after extensive use, it appears to be the root cause of a number of frustrating Firefox issues in daily life: gmail (oops error 1) in persistent tab, loss of the ability to use search engines within the navigation bar (ie. searches stop executing), loss of website navigation in the navigation bar (cannot resolve DNS name, as if the GET method is interrupted).

Removing this extension resolves all of the above issues, I would be an avid user if it didn't come at the expense of FF stability.