I see the keyboard shortcuts for moving up and down the open tabs (ctrl-shift-tab and ctrl-tab) and the go direct to a numbered tab etc...

what I really want is a last tab function that if pressed repeatedly would simply take you back and forth between the last two tabs. Such that if I have 8 tabs open and am presently on tab 7 and then switch to tab 4, then I press this keyboard shortcut it would take me directly back to 7. If pressed again it would go back to 4. etc.

Take filling out a tax form or something as an example. I've got my browser open, several pages on tax help, tax code, and the like along with one with my paystub info and one that I am entering data into. I repeatedly need to bounce back and forth between the tab with the info on it (paystub) and the tab with the data entry on it.

I suppose one could workaround by only having the two desired tabs open in the browser window or by having two browser windows open with each needed page, but this is such ingrained function (alt-tab in windows goes directly between your last two open applications no matter how many you have open) that it just seems very natural to want browser tabs to only go back and forth between the last two as well.

really think this should be developed...seems simple (from an uneducated POV) and serves a definite purpose.

thanks.