diff -r 000000000000 -r 6474c204b198 extensions/cookie/test/unit/test_permmanager_mailto.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/extensions/cookie/test/unit/test_permmanager_mailto.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  // initialize the permission manager service
+  const kTestAddr = "test@example.org";
+  const kType = "test-mailto";
+  const kCapability = 1;
+
+  // make a mailto: URI with parameters
+  let uri = Services.io.newURI("mailto:" + kTestAddr + "?subject=test", null,
+                               null);
+
+  // add a permission entry for that URI
+  Services.perms.add(uri, kType, kCapability);
+  do_check_true(permission_exists(kTestAddr, kType, kCapability));
+
+  // remove the permission, and make sure it was removed
+  Services.perms.remove(kTestAddr, kType);
+  do_check_false(permission_exists(kTestAddr, kType, kCapability));
+
+  uri = Services.io.newURI("mailto:" + kTestAddr, null, null);
+  Services.perms.add(uri, kType, kCapability);
+  do_check_true(permission_exists(kTestAddr, kType, kCapability));
+
+  Services.perms.remove(kTestAddr, kType);
+  do_check_false(permission_exists(kTestAddr, kType, kCapability));
+}
+
+function permission_exists(aHost, aType, aCapability) {
+  let e = Services.perms.enumerator;
+  while (e.hasMoreElements()) {
+    let perm = e.getNext().QueryInterface(Ci.nsIPermission);
+    if (perm.host == aHost &&
+        perm.type == aType &&
+        perm.capability == aCapability) {
+      return true;
+    }
+  }
+  return false;
+}