Quote decimal numbers

user.js

 user_pref("general.smoothScroll.msdPhysics.motionBeginSpringConstant", 600);
 user_pref("general.smoothScroll.msdPhysics.regularSpringConstant", 650);
 user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaMS", 25);
-user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaRatio", 2.0);
+user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaRatio", "2.0");
 user_pref("general.smoothScroll.msdPhysics.slowdownSpringConstant", 250);
-user_pref("general.smoothScroll.currentVelocityWeighting", 1.0);
-user_pref("general.smoothScroll.stopDecelerationWeighting", 1.0);
+user_pref("general.smoothScroll.currentVelocityWeighting", "1.0");
+user_pref("general.smoothScroll.stopDecelerationWeighting", "1.0");
 
 /* Bloat */
 user_pref("browser.startup.homepage_override.mstone", "ignore"); // disable welcome messages