Rated 5 out of 5 stars
Unless you have an old mouse, the scrollwheel is also the middle-click button. If yours is not clickable, then you can either go out and buy a new mouse, or use ctrl+leftclick on links to open them in tabs. "ctrl" is a key that is usually found on the bottom left hand corner of a PC keyboard.
I didn't realize how much I wanted an add-on like this until now. I kept getting annoyed with weaving my way through my Bookmarks to click on bookmarks in the same neighborhood, but then kept forgetting about the annoyance to get on with surfing. THANK YOU!!!
*happy happy clicking*