User Tools

Site Tools






To disable automatic updates you now have to do it though about:config :/

  1. Enter about:config into the address bar,
  2. Search for 'update'
  3. Find
  4. Double-click on that link to change true to false.


Address Bar

You can narrow your searches by starting them with:

^ History
* Bookmarks
% Tabs
# Page titles
@ URLs
+ Tags, separate with spaces for multiple

They're easy to forget, but there's a little add-on you can use to remind yourself: location-bar-characters.

Dark Mode

To tell websites that you prefer to view pages i ndark mode (or…)

  1. about:config
  2. Find ui.systemUsesDarkTheme
    • 0 = light
    • 1 = dark
    • 2 - no prefernce

If you want your UI to be themed you need to use a theme.

Reader View

Reader View is a nice clean way to read stuff online. Makes a lot of news and writing sites actually tolerable. Strips out everything but the text and images. Especially great on mobile, as it will turn pages that aren't designed for a small screen into something comfortable to read in that format.

Some add-ons for enhancing reader view (that I'm yet to test 8-)):



As an alternative to add-ons like Stylus you can simply add CSS rules to the file userContent.css.


  1. Open about:config and turn toolkit.legacyUserProfileCustomizations.stylesheets to True.
  2. Open your profile directory (for me it's ~/.mozilla/[profile name]) and create a directory called chrome if it doesn't exist.
  3. Inside chrome create a file called userContent.css
  4. Added rules to this, enclosed within @-moz-document domain([url]) {} that references the site you wish to target.
@-moz-document domain( {
	body {


Browser works, pages don't load

Sometimes after a crash Firefox will start-up just fine, but pages won't load. Deleting ~/.cache/mozilla seems to fix it.

I ended up making an alias in my .bashrc:

alias fix-firefox='rm -rf ~/.cache/mozilla/firefox'

See Also

tool/software/firefox.txt · Last modified: 2020/09/08 01:40 by rjt