Previous tab styling:
- Enter about:config in the address bar
- Search for “proton”
- Set the following options to
false
- browser.proton.contextmenus.enabled
- browser.proton.doorhangers.enabled
- browser.proton.enabled
- browser.proton.modals.enabled
Compact styling:
- Search for “uidensity”
- Set browser.uidensity to
1
Before / After:
Going forward:
These settings are being deprecated soon but it’s possible to apply custom CSS (or create your own) through userChrome.css
and userContent.css
to change Firefox styling in any way you like.
Custom CSS Guides:
- How To (simple): How to Add a User Stylesheet in Firefox
- More info: GitHub - Aris-t2/CustomCSSforFx: Custom CSS tweaks for Firefox
- Even more info: (In-Depth): https://www.userchrome.org/
- Reddit dedicated to custom styling: https://www.reddit.com/r/FirefoxCSS/