Everybody’s favorite open-source browser, Firefox, is great right out of the box. And by adding some of the awesome extensions available out there, the browser just gets better and better.
·Spacebar (page down)
·Shift-Spacebar (page up)
·Ctrl+F (find)
·Alt-N (find next)
·Ctrl+D (bookmark page)
·Ctrl+T (new tab)
·Ctrl+K (go to search box)
·Ctrl+L (go to address bar)
·Ctrl+= (increase text size)
·Ctrl+- (decrease text size)
·Ctrl-W (close tab)
·F5 (reload)
·Alt-Home (go to home page)”
Source: computer world
1) More screen space.
2) Smart keywords.
3) Keyboard shortcuts.
4) Auto-complete.
5) Tab navigation.
6) Mouse shortcuts.
7) Delete items from address bar history.
8) User chrome.
9) Create a user.js file.
10) about:config.
11) Add a keyword for a bookmark. .
12) Speed up Firefox.
13) Limit RAM usage.
14) Reduce RAM usage further for when Firefox is minimized.
15) Move or remove the close tab button.
Source: lifehack