Firefox cheatsheet

Firefox is a powerful open-source browser, I spend hours each days using it, I really like its developer tools making web development much easier to debug. There are dozens of amazing extensions.

Useful configurations

  • Ctrl-tab in reverse use order instead of left to right
  • todo

Under about:config

todo

PWA

See Firefox PWA on Fedora.

Nice addons

todo: do an extension pack to easily install all of that in one click ?!

Must have blockers

  • Ublock Origin
  • Privacy badger
  • Facebook container
  • Decentraleyes - can sometimes create very strange issues...
  • I still don't care about cookies

Useful web dev extensions

  • Rust Search Extension
  • Cookie Quick Manager
  • Clear cache -> press F9 to clear cache
  • Fake filler -> fill forms with fake realistic values
  • Fontanello -> easily show the used font

Distractions remover

  • DF Youtube (Distraction Free)

to explorer and test and compare

  • leechblock ng
  • Distract Me Not

Youtube Playback Speed Control

todo

Vimium

todo

SingleFile

todo

Fireshot

todo

SVG Screenshot

todo

Unclutter

todo

openDevApps

I know ... that's my experimental simple bookmarks extension (but I continue to use it, that's still useful to me)

CustomCSS Injector

Something the look of a website is nice... but you will wish it could be just a bit different. I really like the design of crates.io but I hate to be constrained in such a small width box displaying the README, especially when large code samples are present...

If you inspect the HTML, you quickly see a div with a class width-limit applying a width of 960px... With this extension, you can just inject any kind of CSS, like here where I reset the value of the width attribute to override the CSS definition. I apply this only the domain, to avoid affecting other websites...

.width-limit {
    width: 100%;
}

As you can see the box is now at full width !

Devtools

You have to learn how to use it, it is really powerful !

https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/index.html

To explore

https://www.tampermonkey.net/