diff --git a/modules/libpref/src/init/all.js b/modules/libpref/src/init/all.js
index e6910a00440..63bda91f3ed 100644
--- a/modules/libpref/src/init/all.js
+++ b/modules/libpref/src/init/all.js
@@ -3732,7 +3732,7 @@ pref("toolkit.identity.debug", false);
 pref("dom.mozApps.dev_mode", false);
 
 // Lowest localId for apps.
-pref("dom.mozApps.maxLocalId", 0);
+pref("dom.mozApps.maxLocalId", 1000);
 
 // Let us know wether we should run the permissions update algorithm.
 // See Bug 787439