Rated 4 out of 5 stars

4 stars because
"double-click Bookmark/History to open in new tab"
works only on Bookmark/History SIDEBAR.

It would be great to make it work with the bookmark/history toolbar and menus.

If this is not possible, then you should update the description!

Congratz! Great addon, especially for laptops and netbooks!

This review is for a previous version of the add-on (1.4.1). 

Try new v1.5

Wasn't easy but (hopefully) found a way to make it work...