A quick and powerful upgrade for your Firefox shortcut mastery: Move Tabs.
It’s a simple and useful Firefox extension developed by Jêrome Reybert that allows you to move the current tab to the left, right, the beginnign or the end of the tab bar by simply pressing Ctrl + Shift + PageUp, PageDown,Home and End respectively.
Really simple. Get Move Tabs at Mozilla Add-ons.
Credit to ‘Mozilla Links’