A Firefox add-on that allows you to replace the CTRL+TAB behavior
Version: 0.2.1Ctrl Tab Preview replaces the behavior of Ctrl+Tab (Cmd + Option + Tab on Mac).
Operating System: Mac OS X
Instead of directly changing tab it works some thing like Alt+Tab on windows. It views preview of the tab and you can change directly to the tab you want to or just go through all tabs to see what you got in them.
A pictures tells more then thousands words so look at the pictures or try it.