Disable elements of the firefox 57 UI for TreeStyleTab - Super User
How to Add a User Stylesheet in Firefox
Mozilla warns of potential Y2K-style bugs in Chrome and Firefox | PCWorld
Maybe try Tree Style Tab? : r/firefox
Firefox Edge Theme Makes Firefox Browser Look like Microsoft's Edge
GitHub - diedummydie/Safari-Theme-for-Firefox: Make Firefox look more native on macOS. Light Mode / Dark Mode.
How to Add a User Stylesheet in Firefox
Style Editor — Firefox Source Docs documentation
Nordic Firefox Theme : r/FirefoxCSS
How to Theme Firefox - YouTube
firefox-theme · GitHub Topics · GitHub
reStyle – Get this Extension for 🦊 Firefox (en-US)
firefox-theme · GitHub Topics · GitHub
Use themes to change the look of Firefox | Firefox Help
Tree Style Tab – Get this Extension for 🦊 Firefox (en-US)
The Safari Firefox Theme is Beautiful | TwisterMc
Nord - Firefox Theme by dpcdpc11 on DeviantArt
Stylish - Custom themes for any website – Get this Extension for 🦊 Firefox (en-US)
Style Editor — Firefox Source Docs documentation
Examine and edit CSS — Firefox Source Docs documentation
How to Customize Firefox's User Interface With userChrome.css
