Here are a few shortcuts I’ve been using with Firefox. Feel free to add your own.

ALT-D
To jump to the address bar.

CTRL-T
To launch a new tab

CTRL-Shift-T
Open a recently closed tab

CTRL-Enter
To type “www…com” quickly.

CTRL-Mouse wheel spin
To enlarge or shrink page font size

SHIFT-Click
A link to launch a new window with the link.

Center scroll mouse click
A link to launch a new tab with the link.

CTRL-D
To bookmark the current page

Backspace
To reverse one page in your browser history.

CTRL-K
Jump to Google bar to search

F11
To expand to Full Screen view

F5
Refresh-reload the web page