- Ctrl+T and Ctrl+W to open and close Tabs- Ctrl+H for History- Ctrl+F for Find- Ctrl+ __D__ to Duplicate current tab (IT ACTUALLY DOES NOT WORK - it is a muscle memory from the time FF had customizable shortcuts. Now I get the "Add bookmark" window,...
I used Saka Key extension just for that functionality, but it is no longer maintained and started breaking a few important sites, so I had to disable it.Now I don't have a keyboard only way to duplicate the current tab again .