diff --git a/mozilla/modules/libpref/src/init/all.js b/mozilla/modules/libpref/src/init/all.js
index 62cc8644d1f..f10f6a60dd9 100644
--- a/mozilla/modules/libpref/src/init/all.js
+++ b/mozilla/modules/libpref/src/init/all.js
@@ -440,9 +440,9 @@ pref("clipboard.autocopy", false);
 pref("mousewheel.withnokey.action",0);
 pref("mousewheel.withnokey.numlines",1);	
 pref("mousewheel.withnokey.sysnumlines",true);
-pref("mousewheel.withcontrolkey.action",3);
+pref("mousewheel.withcontrolkey.action",0);
 pref("mousewheel.withcontrolkey.numlines",1);
-pref("mousewheel.withcontrolkey.sysnumlines",false);
+pref("mousewheel.withcontrolkey.sysnumlines",true);
 pref("mousewheel.withshiftkey.action",0);
 pref("mousewheel.withshiftkey.numlines",1);
 pref("mousewheel.withshiftkey.sysnumlines",false);