diff --git a/.config/firefox/README.md b/.config/firefox/README.md
index e4741d3..1899730 100644
--- a/.config/firefox/README.md
+++ b/.config/firefox/README.md
@@ -1,2 +1,6 @@
 Symlink the file to the profile directory:
 ln -s ~/.config/firefox/userChrome.css ~/.mozilla/firefox/[PROFILE]/chrome/userChrome.css
+
+in about:config
+
+toolkit.legacyUserProfileCustomizations.stylesheets auf true setzen