--- a/b2g/app/b2g.js
+++ b/b2g/app/b2g.js
@@ -1048,16 +1048,19 @@ pref("dom.apps.reviewer_paths", "/review
 
 // New implementation to unify touch-caret and selection-carets.
 pref("layout.accessiblecaret.enabled", true);
 
 // Show the selection bars at the two ends of the selection highlight. Required
 // by the spec in bug 921965.
 pref("layout.accessiblecaret.bar.enabled", true);
 
+// Hide the caret in cursor mode after 3 seconds.
+pref("layout.accessiblecaret.timeout_ms", 3000);
+
 // APZ on real devices supports long tap events.
 #ifdef MOZ_WIDGET_GONK
 pref("layout.accessiblecaret.use_long_tap_injector", false);
 #endif
 
 // Hide carets and text selection dialog during scrolling.
 pref("layout.accessiblecaret.always_show_when_scrolling", false);
 

--- a/mobile/android/app/mobile.js
+++ b/mobile/android/app/mobile.js
@@ -917,19 +917,16 @@ pref("layout.accessiblecaret.enabled", t
 // AccessibleCaret CSS for the Android L style assets.
 pref("layout.accessiblecaret.width", "22.0");
 pref("layout.accessiblecaret.height", "22.0");
 pref("layout.accessiblecaret.margin-left", "-11.5");
 
 // Android needs to show the caret when long tapping on an empty content.
 pref("layout.accessiblecaret.caret_shown_when_long_tapping_on_empty_content", true);
 
-// Android needs persistent carets and actionbar. Turn off the caret timeout.
-pref("layout.accessiblecaret.timeout_ms", 0);
-
 // Android generates long tap (mouse) events.
 pref("layout.accessiblecaret.use_long_tap_injector", false);
 
 // Androids carets are always tilt to match the text selection guideline.
 pref("layout.accessiblecaret.always_tilt", true);
 
 // Selection change notifications generated by Javascript changes
 // update active AccessibleCarets / UI interactions.

--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -4999,17 +4999,17 @@ pref("layout.accessiblecaret.bar.width",
 // Show no selection bars at the two ends of the selection highlight.
 pref("layout.accessiblecaret.bar.enabled", false);
 
 // Show the caret when long tapping on an empty content.
 pref("layout.accessiblecaret.caret_shown_when_long_tapping_on_empty_content", false);
 
 // Timeout in milliseconds to hide the accessiblecaret under cursor mode while
 // no one touches it. Set the value to 0 to disable this feature.
-pref("layout.accessiblecaret.timeout_ms", 3000);
+pref("layout.accessiblecaret.timeout_ms", 0);
 
 // Simulate long tap to select words on the platforms where APZ is not enabled
 // or long tap events does not fired by APZ.
 pref("layout.accessiblecaret.use_long_tap_injector", true);
 
 // By default, carets become tilt only when they are overlapping.
 pref("layout.accessiblecaret.always_tilt", false);