Firefox Menu discussion - mozillaZine Forums

Nocturnal Firefox Theme (Read Description)

Stylish add-on makes a return : r/firefox

Alternatives to Stylish for Firefox

Moving User Styles (Themes) from Stylish 3.x to Stylus

Melbourne (Firefox CSS, FF 29 and above) by noha-ra on DeviantArt

Syncing Stylish userstyles with Dropbox - The World of Curtis Gibby - My Blog

Stylish is back, and you still shouldn't use it

HOW TO MAKE MOZILLA FIREFOX STYLISH

Privacy Warning for anyone using Stylish for Roll20 to get Dark Mode. Stylish extension has been found to be stealing internet history of its 2 million users automatically without full consent.

Stylish can change your web experience easy Chrome and Firefox Add-on