This theme is my spin on harshpx's TealFox theme, which is based on migueravila's SimpleFox theme.
Using Dark Vanilla's color palette, with some added Material3 Web design choices. (pretty much just the rounded corners)

Installation/Setup

1. Go to about:config and Set these flags true:
   • toolkit.legacyUserProfileCustomizations.stylesheets
   • layers.acceleration.force-enabled
   • gfx.webrender.all
   • svg.context-properties.content.enabled
2. Go to your Firefox profile:
   1. Go to the "URL" about:profiles
   2. In the section marked: "This is the profile in use and it cannot be deleted.", press the "Open Folder" button for the Root Directory
   • Linux: $HOME/.mozilla/firefox/XXXXXXX.default-release/
   • Windows: C:\Users\<USERNAME>\AppData\Roaming\Mozilla\Firefox\Profiles\XXXXXXX.default-XXXXXX
   • MacOS: Users/<USERNAME>/Library/Application Support/Firefox/Profiles/XXXXXXX.default-XXXXXXX
3. Create an folder named chrome into this directory (if it does not already exists).
4. Copy all the repo contents into chrome folder.
   • Or just the userChrome.css file in to the chrome folder
   • And/Or right-click, Save File As, save into the chrome folder
5. Make all the customizations you want.
6. Enjoy!