Three quick tips that I wanted to share.
First, my wife taught me that you can simply nit "ctrl - Tab" and you will move from left to right between tabs. Very nice.
My first tip to her was you hit "ctrl" and "pg up" or "pg dn" and will move left to right or right to left, respectively.
My second tip to her was use of "ctrl" and the numbers. "Ctrl - 1" takes you to the first tab, "Ctrl - 9" always takes you to the last tab, or the 9th if there is one. All other numbers will take you to the numbered tab you hit.
Boom, there you go, faster Firefox tab navigations.
