diff -r 000000000000 -r 6474c204b198 mobile/android/chrome/content/MasterPassword.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/chrome/content/MasterPassword.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,67 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+var MasterPassword = {
+  pref: "privacy.masterpassword.enabled",
+  _tokenName: "",
+
+  get _secModuleDB() {
+    delete this._secModuleDB;
+    return this._secModuleDB = Cc["@mozilla.org/security/pkcs11moduledb;1"].getService(Ci.nsIPKCS11ModuleDB);
+  },
+
+  get _pk11DB() {
+    delete this._pk11DB;
+    return this._pk11DB = Cc["@mozilla.org/security/pk11tokendb;1"].getService(Ci.nsIPK11TokenDB);
+  },
+
+  get enabled() {
+    let slot = this._secModuleDB.findSlotByName(this._tokenName);
+    if (slot) {
+      let status = slot.status;
+      return status != Ci.nsIPKCS11Slot.SLOT_UNINITIALIZED && status != Ci.nsIPKCS11Slot.SLOT_READY;
+    }
+    return false;
+  },
+
+  setPassword: function setPassword(aPassword) {
+    try {
+      let status;
+      let slot = this._secModuleDB.findSlotByName(this._tokenName);
+      if (slot)
+        status = slot.status;
+      else
+        return false;
+
+      let token = this._pk11DB.findTokenByName(this._tokenName);
+
+      if (status == Ci.nsIPKCS11Slot.SLOT_UNINITIALIZED)
+        token.initPassword(aPassword);
+      else if (status == Ci.nsIPKCS11Slot.SLOT_READY)
+        token.changePassword("", aPassword);
+
+      BrowserApp.notifyPrefObservers(this.pref);
+      return true;
+    } catch(e) {
+      dump("MasterPassword.setPassword: " + e);
+    }
+    return false;
+  },
+
+  removePassword: function removePassword(aOldPassword) {
+    try {
+      let token = this._pk11DB.getInternalKeyToken();
+      if (token.checkPassword(aOldPassword)) {
+        token.changePassword(aOldPassword, "");
+        BrowserApp.notifyPrefObservers(this.pref);
+        return true;
+      }
+    } catch(e) {
+      dump("MasterPassword.removePassword: " + e + "\n");
+    }
+    NativeWindow.toast.show(Strings.browser.GetStringFromName("masterPassword.incorrect"), "short");
+    return false;
+  }
+};