Examine and edit CSS — Firefox Source Docs documentation
Firefox Developer Edition
CSS basics - Learn web development | MDN
CSS difference output in Firefox and Chrome - HTML-CSS - The freeCodeCamp Forum
Only Firefox honours !important in CSS animations
Firefox's inspector does not display css rules for a specific website | Firefox-ondersteuningsforum | Mozilla Support
Firefox logo with HTML and CSS only : r/firefox
Targeting only Firefox with CSS - GeeksforGeeks
CSS basics - Learn web development | MDN
Targeting only Firefox with CSS - GeeksforGeeks
browser specific css for internet explorer and Firefox only - Stack Overflow
Firefox 89+ – Styling the New Proton UI
Console messages — Firefox Source Docs documentation
GitHub - ideaweb/firefox-safari-style: A macOS compliant theme for Firefox
Made my css for Firefox w/ Sidebery show only favicons in the sidebar but display text on hover. Still working on the pinned tabs. : r/FirefoxCSS
Examine and edit CSS — Firefox Source Docs documentation
html - CSS styling works on Chrome but not on Firefox - Stack Overflow
Handling common HTML and CSS problems - Learn web development | MDN
Examine and edit CSS — Firefox Source Docs documentation
Layout fix for Firefox in "Zoom text only" mode - Meta Stack Exchange
Examine and edit CSS — Firefox Source Docs documentation
New CSS Features in Firefox 68 - Mozilla Hacks - the Web developer blog
Examine and edit CSS — Firefox Source Docs documentation
Firefox - Wikipedia
How to Add a User Stylesheet in Firefox
