Aren't you forgetting something!? Rated 2 out of 5 stars
After opening (with keyboard) a new tab, the focus (cursor) is NOT in the search-bar!
I still have to grab the mouse, click in the search-line, let go of mouse, go back to keyboard.
Could as well have clicked on the Homepage icon in firefox toolbar.
Can it be helped? Focus for typing in the search bar? (my homepage is Google search.