Bug 940617 - "Recently closed tabs" list should exclude tabs with about: URIs as the only history entry. r=ttaubert

browser/components/sessionstore/src/SessionStore.jsm

@@ -3435,9 +3435,8 @@ let SessionStoreInternal = {
     // store this tab's data.
     return aTabState.entries.length &&
            !(aTabState.entries.length == 1 &&
-                (aTabState.entries[0].url == "about:blank" ||
-                 aTabState.entries[0].url == "about:newtab") &&
-                 !aTabState.userTypedValue);
+             aTabState.entries[0].url.startsWith("about:") &&
+             !aTabState.userTypedValue);
   },
 
   /**