very useful!!!!!!! Rated 5 out of 5 stars

An addon like this isn't very difficult to write!!!!! It's very simple, very easy!!!!!! it has a little of source code!!!!! nevertheless IT'S VERY USEFUL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I think FireFOX should have a similar button built-in!!!!!!!!!
I think a useful addon, isn't a complex addon!!! but it's an addon made to accomplish a good idea!!!!!!!!!!