diff --git a/Common-Overrides.md b/Common-Overrides.md
index 94cf70d..7a08523 100644
--- a/Common-Overrides.md
+++ b/Common-Overrides.md
@@ -1,5 +1,7 @@
 ## Instructions
 
+**Open the file in a text editor such as Notepad, make your changes, save them, and then close the file.**
+
 A `user.js` applies prefs in the order they are written.
 
 So, if a pref is listed a second time, then the second value (yours) would override the first (Betterfox's).