[Mypal] Add pref to ask for master password on application start.

application/palemoon/app/profile/mypal.js

@@ -947,6 +947,9 @@ pref("browser.privatebrowsing.autostart", false);
 // bookmarking dialog
 pref("browser.bookmarks.editDialog.firstEditField", "namePicker");
 
+// Prompt for master password on application startup?
+pref("signon.startup.prompt", false);
+
 // Whether to use a panel that looks like an OS X sheet for customization
 #ifdef XP_MACOSX
 pref("toolbar.customization.usesheet", true);
@@ -1060,6 +1063,7 @@ pref("services.sync.prefs.sync.security.default_personal_cert", true);
 pref("services.sync.prefs.sync.security.tls.version.min", true);
 pref("services.sync.prefs.sync.security.tls.version.max", true);
 pref("services.sync.prefs.sync.signon.rememberSignons", true);
+pref("services.sync.prefs.sync.signon.startup.prompt", true);
 pref("services.sync.prefs.sync.spellchecker.dictionary", true);
 pref("services.sync.prefs.sync.xpinstall.whitelist.required", true);
 #endif

application/palemoon/components/nsBrowserGlue.js

@@ -289,6 +289,7 @@ BrowserGlue.prototype = {
         break;
       case "profile-after-change":
          this._onProfileAfterChange();
+         this._promptForMasterPassword();
          break;
       case "browser-search-engine-modified":
         if (data != "engine-default" && data != "engine-current") {
@@ -411,6 +412,26 @@ BrowserGlue.prototype = {
   _onProfileAfterChange: function() {
     this._copyDefaultProfileFiles();
   },
+  
+  _promptForMasterPassword: function() {
+    if (!Services.prefs.getBoolPref("signon.startup.prompt", false))
+      return;
+
+    // Try to avoid the multiple master password prompts on startup scenario
+    // by prompting for the master password upfront.
+    let token = Components.classes["@mozilla.org/security/pk11tokendb;1"]
+                          .getService(Components.interfaces.nsIPK11TokenDB)
+                          .getInternalKeyToken();
+
+    // Only log in to the internal token if it is already initialized,
+    // otherwise we get a "Change Master Password" dialog.
+    try {
+      if (!token.needsUserInit)
+        token.login(false);
+    } catch (ex) {
+      // If user cancels an exception is expected.
+    }
+  },
 
   _onAppDefaults: function() {
     // apply distribution customizations (prefs)