2805: see #774

user.js

@@ -1340,9 +1340,9 @@ user_pref("privacy.cpd.offlineApps", true); // Offline Website Data
 user_pref("privacy.cpd.passwords", false); // this is not listed
 user_pref("privacy.cpd.sessions", true); // Active Logins
 user_pref("privacy.cpd.siteSettings", false); // Site Preferences
-/* 2805: privacy.*.openWindows (clear session restore data) [FF34+]
- * [NOTE] There is a years-old bug that these cause two windows when Firefox restarts.
- * You do not need these anyway if session restore is cleared with history (see 2803) ***/
+/* 2805: clear Session Restore data when sanitizing on shutdown or manually [FF34+]
+ * [NOTE] Not needed if Session Restore is not used (see 0102) or is already cleared with history (see 2803)
+ * [NOTE] privacy.cpd.openWindows has a bug that causes an additional window to open ***/
    // user_pref("privacy.clearOnShutdown.openWindows", true);
    // user_pref("privacy.cpd.openWindows", true);
 /* 2806: reset default 'Time range to clear' for 'Clear Recent History' (see 2804)