--- a/testing/web-platform/tests/tools/webdriver/webdriver/client.py
+++ b/testing/web-platform/tests/tools/webdriver/webdriver/client.py
@@ -620,16 +620,20 @@ class Element(object):
     identifier = "element-6066-11e4-a52e-4f735466cecf"
 
     def __init__(self, session, id):
         self.session = session
         self.id = id
         assert id not in self.session._element_cache
         self.session._element_cache[self.id] = self
 
+    def __eq__(self, other):
+        return isinstance(other, Element) and self.id == other.id \
+                and self.session == other.session
+
     def send_element_command(self, method, uri, body=None):
         url = "element/%s/%s" % (self.id, uri)
         return self.session.send_session_command(method, url, body)
 
     def json(self):
         return {Element.identifier: self.id}
 
     @command