--- a/b2g/app/b2g.js
+++ b/b2g/app/b2g.js
@@ -1054,19 +1054,16 @@ pref("layout.accessiblecaret.enabled", t
 // by the spec in bug 921965.
 pref("layout.accessiblecaret.bar.enabled", true);
 
 // APZ on real devices supports long tap events.
 #ifdef MOZ_WIDGET_GONK
 pref("layout.accessiblecaret.use_long_tap_injector", false);
 #endif
 
-// The active caret is disallow to be dragged across the other (inactive) caret.
-pref("layout.accessiblecaret.allow_dragging_across_other_caret", false);
-
 // Enable sync and mozId with Firefox Accounts.
 pref("services.sync.fxaccounts.enabled", true);
 pref("identity.fxaccounts.enabled", true);
 
 // Mobile Identity API.
 pref("services.mobileid.server.uri", "https://msisdn.services.mozilla.com");
 
 pref("identity.fxaccounts.remote.oauth.uri", "https://oauth.accounts.firefox.com/v1");