- Type in URL BAR
about:config - skip the warning, continue
- Type
toolkit.legacyUserProfileCustomizations.stylesheetsin page search bar - Double click
false, It should stay ontrue
- Type
about:supportin URL BAR - Click on
Profile FolderButton. This is your current Firefox user Profile. - In that same folder, create a folder named
chrome - Inside of
chromemake a new text file, open it and save it asuserChrome.css - Folder structure should look like this:
Profile-Folder-Name/chrome/userchrome.css
- This is just a baseline for custom edits you may want to make
- Any custom themes you download will be going into the chrome folder
- Pictures below




