Sun Valley + MDL2 Theme for Firefox
MIT License
Brings the Windows 7 titlebar buttons to Windows 10/11 (And maybe other versions!)
Add background Blur effect or Acrylic (Mica for win11) effect to explorer for win10 and win11
Firefox Theme - For dark theme lovers / More compact / Modular / Blur
Spicetify theme inspired by Microsoft's Fluent Design