diff --git a/js/xpconnect/src/XPCShellImpl.cpp b/js/xpconnect/src/XPCShellImpl.cpp
index 851c7aa9bd0..710400be1d4 100644
--- a/js/xpconnect/src/XPCShellImpl.cpp
+++ b/js/xpconnect/src/XPCShellImpl.cpp
@@ -32,6 +32,7 @@
 #include "nsIPrincipal.h"
 #include "nsJSUtils.h"
 #include "gfxPrefs.h"
+#include "nsIXULRuntime.h"
 
 #include "base/histogram.h"
 
@@ -1474,6 +1475,8 @@ XRE_XPCShellMain(int argc, char** argv, char** envp)
 
         // Initialize graphics prefs on the main thread, if not already done
         gfxPrefs::GetSingleton();
+        // Initialize e10s check on the main thread, if not already done
+        BrowserTabsRemoteAutostart();
 
         {
             JS::Rooted<JSObject*> glob(cx, holder->GetJSObject());