--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1046,20 +1046,23 @@ sticky_pref("devtools.debugger.prompt-co
 sticky_pref("devtools.debugger.prompt-connection", true);
 #endif
 
 #ifdef MOZILLA_OFFICIAL
 // Disable debugging chrome
 sticky_pref("devtools.chrome.enabled", false);
 // Disable remote debugging connections
 sticky_pref("devtools.debugger.remote-enabled", false);
+// enable JS dump() function.
+sticky_pref("browser.dom.window.dump.enabled", false);
 #else
 // In local builds, enable the browser toolbox by default
 sticky_pref("devtools.chrome.enabled", true);
 sticky_pref("devtools.debugger.remote-enabled", true);
+sticky_pref("browser.dom.window.dump.enabled", true);
 #endif
 
 
 // Disable remote debugging protocol logging
 pref("devtools.debugger.log", false);
 pref("devtools.debugger.log.verbose", false);
 
 pref("devtools.debugger.remote-port", 6000);
@@ -5172,19 +5175,16 @@ pref("media.ondevicechange.fakeDeviceCha
 // a no-op.
 pref("layout.css.touch_action.enabled", true);
 
 // Enables some assertions in nsStyleContext that are too expensive
 // for general use, but might be useful to enable for specific tests.
 // This only has an effect in DEBUG-builds.
 pref("layout.css.expensive-style-struct-assertions.enabled", false);
 
-// enable JS dump() function.
-pref("browser.dom.window.dump.enabled", false);
-
 #if defined(MOZ_WIDGET_ANDROID)
 // Network Information API
 pref("dom.netinfo.enabled", true);
 #else
 pref("dom.netinfo.enabled", false);
 #endif
 
 #ifdef XP_WIN