Spell Tab 1.3
by Yigit Oktar
Spell Tab assigns urls to number keys. (options menu). Then when you press ctrl, release it, and then press a number key(within a sec) the associated url opens in a tab. If the url already exists in another tab then view switches to that tab.
This add-on has been preliminarily reviewed by Mozilla. Learn more
This add-on is not compatible with your version of Firefox because of the following: