It was not Super Start cousing the annoying new tabs opened. Sorry. ;) Rated 5 out of 5 stars

Sorry the extra new tab that was opened every time I was using the location bar (from Super Star) was due to a wrong setting in Tab Mix Plus by me. Thank you for the tip. ;)

This review is for a previous version of the add-on (6.12). 

Idea for improvements. Rated 4 out of 5 stars

It is a very nice and helpful addon.
Very handy that I have the option to open every dial in the same tab by default spare me to close a lots of empty tabs. But it is annoying that when I type in a location url it open in a new tab.
I am browsing very fast and uses a new tab for every new task or url so it leaves me with a hole lot of new empty tabs left by the SuperStart. ;(

I was migrating from the Opera browser 12 and found SuperStart the closest alternative.
However you can make it even faster making it uses hotkey Ctrl-1, 2, 3 and so on accessing every dial.

This review is for a previous version of the add-on (6.12). 

Hi king.hans,
Thanks for your feedback.
However, if my understanding is correct, your browser opens a new tab when you type <enter> in the address bar? SuperStart doesn't change the behavior for opening URL from the address bar. I think it could be caused by other extensions.

For the hotkeys, I'll take it into consideration in the future.

Thank you.