CSS @supports rules to target only Firefox / Safari / Chromium – Bram.us
Examine and edit CSS — Firefox Source Docs documentation
Only Firefox honours !important in CSS animations
Examine and edit CSS — Firefox Source Docs documentation
Firefox - Wikipedia
Blog
Close tab button color | Firefox Support Forum | Mozilla Support
Examine and edit CSS — Firefox Source Docs documentation
Examine and edit CSS — Firefox Source Docs documentation
CSS coding techniques - Mozilla Hacks - the Web developer blog
Examine and edit CSS — Firefox Source Docs documentation
How to Customize Firefox's User Interface With userChrome.css
Examine and edit CSS — Firefox Source Docs documentation
New CSS Features in Firefox 68 - Mozilla Hacks - the Web developer blog
CSS basics - Learn web development | MDN
html - CSS styling works on Chrome but not on Firefox - Stack Overflow
Examine and edit CSS — Firefox Source Docs documentation
Console messages — Firefox Source Docs documentation
Targeting only Firefox with CSS - GeeksforGeeks
Examine and edit CSS — Firefox Source Docs documentation
CSS basics - Learn web development | MDN
Handling common HTML and CSS problems - Learn web development | MDN
GitHub - ideaweb/firefox-safari-style: A macOS compliant theme for Firefox
