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!
Try new v1.5
Wasn't easy but (hopefully) found a way to make it work...