Great Rated 5 out of 5 stars

Works great.
Must have for wide screens.

1. use similar style for bookmark tree in side bar and tabs tree
2. Unify the add-on bar too -- would be great to have a short add-on bar only under the tab bar & side bar

This review is for a previous version of the add-on (0.1.2011021901.1-signed.1-signed).