Rated 5 out of 5 stars

Been using this addon pretty much since I installed Firefox, it is an invaluable tool. I've also been watching other similar addons, inclding the ones from other browsers, but all of them consistently fail to provide the functionality of Speed Dial, like free tab placement in any cell you want, tab groups, or freely choosing the number of cells/rows/columns.

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