Rated 2 out of 5 stars

I am gonna be blunt - 2 stars was a gift:
1. The bookmarks supplied with this extension shove the existing bookmarks to never-never land. I don't need your bookmarks added to mine, and then waste my time deleting your bookmarks!
2. Use of the Statusbar for controls for this extension is just plain wrong. This extension occupies approx 60% of a 1024px width Statusbar. A separate, conventional, optional Toolbar is a must. I do have icons for other extensions on the Statusbar, right now I can't see any URLs in the Statusbar - so the original purpose of the Statusbar is reduced to three dots.
3. The overall concept is brilliant, but IMO the execution is very poor. Back to the drawing board.
4. Didn't even use Firefox once I installed this extension to test for problems with other extensions as mentioned. This profile is going to the Recycle Bin after I test how cleanly it un-installs.

Ed

This review is for a previous version of the add-on (0.8.2). 

Great idea, but needs work Rated 3 out of 5 stars

Would be one of my favorite extensions - I LOVE the grouping methods - but it conflicts with All-In-One-Sidebar!! :-( The left pane / left sidebar does not open AT ALL if AIOS has been installed, even if you disable it! There are also some conflicts with TabKit and probably some other extensions, but those issues are less significant than the AIOS conflict. I hope that this can be fixed soon!

This review is for a previous version of the add-on (0.8.1).