I’m sure some of you may be frustrated by Firefox 3.1’s new tab behaviour when pressing Ctrl + Tab. No longer does it just browse through the tabs, but instead it switches to the most recently viewed tab (much like Windows Alt + Tab.

Thankfully, you can turn the new Ctrl + Tab behaviour off, and return it old skool. Simply follow the steps below:

• Go to about:config in the URL bar
• Set browser.ctrlTab.mostRecentlyUsed to false
• Set browser.ctrlTab.recentlyUsedLimit to 0
• Restart Firefox

All done! Enjoy the old Ctrl + Tab behaviour.