Rated 4 out of 5 stars

The only problem I had with this extension is that when uninstalling it, it doesn't revert your Start Page. In fact, I'd quite like it to not change my Start Page at all.

For those who had a problem, simply go into Thunderbird options and click "Revert Default" on the Start Page options.

This review is for a previous version of the add-on (3.2.0.9). 

The FAQ does have a topic about this. I'm considering making the FAQ available online.

3.2.1 has some code in it that should delete ThunderBrowse prefs on uninstall (with the exception of two prefs) and reset the homepage. The wizard also had an option to force ThunderBrowse not to overwrite the startpage.