Firefox keyboard shortcuts.
Manage tabs, reopen what you closed, and fly around the web in Firefox. Mac and Windows shortcuts.
Tabs and the address bar first
As with any browser, the biggest Firefox time-savers are tab management and the address bar. Ctrl/⌘ + T opens a tab, Ctrl/⌘ + W closes one, and the essential Ctrl/⌘ + Shift + T reopens the last tab you closed — repeatedly, in order. Ctrl/⌘ + L jumps to the address bar and selects what's there so you can just type. These four cover most of the clicking you'd otherwise do.
Firefox niceties
A few are worth singling out. Ctrl/⌘ + Shift + R forces a reload that ignores the cache — the first thing to try when a page looks broken. Firefox's reader view (Ctrl + Alt + R) strips a cluttered article down to clean text. And a private window is Ctrl/⌘ + Shift + P — note the P, where Chrome uses N. If you move between browsers, compare with the Chrome and Safari cheatsheets; most keys match, with a few telling exceptions.