Firefox: My Missing Manual

Here is a list of accelerators and how-to related to Firefox. It will be maintained and update regularly.

Accelerators

	Linux + Windows	Mac OSX
Enable or disable Status Bar	Crtl + /
Firefox Developer Tools	Ctrl + Shift + K	⌘ + ⌥ + K
Web Console	Ctrl + Shift + J
Responsive Design View	Ctrl + Shift + M	⌘ + ⌥ + M

How-To

Enable JavaScript

Mozilla: Support Forum: how do i enable javascript if there is no option to enable javascript

Sometimes my JavaScript is automatically disabled for no reason. I have to type about:config in address bar and enable javascript.enabled manually.

Move Sessions Between FireFox

Move FireFox Sessions from Linux to Mac

If you open several tabs and windows open, you may move them to your new Firefox by copying sessionstore.js.

Reference

1. How to enable Status Bar in Firefox newer versions
2. Move FireFox Sessions from Linux to Mac
3. Mozilla: Firefox
4. Mozilla: Firefox Developer Tools
5. Mozilla: Support Forum: how do i enable javascript if there is no option to enable javascript