diff --git a/marionette/tor_browser_tests/lib/testsuite.py b/marionette/tor_browser_tests/lib/testsuite.py
index 88b1953e42fab40ec3ac9e00ce586fade7453ea4..fd17887177d0664bac1d731d65ba98f8a29f3fd6 100644
--- a/marionette/tor_browser_tests/lib/testsuite.py
+++ b/marionette/tor_browser_tests/lib/testsuite.py
@@ -28,6 +28,10 @@ class TestSuite(object):
 
 
 class TorBrowserTest(MarionetteTestCase):
+    def is_early_beta_or_earlier(self):
+        with self.marionette.using_context("chrome"):
+            return self.marionette.execute_script("return AppConstants.EARLY_BETA_OR_EARLIER;")
+
     def get_version(self):
         with self.marionette.using_context("chrome"):
             return self.marionette.execute_script("return parseFloat(AppConstants.MOZ_APP_VERSION);")
diff --git a/marionette/tor_browser_tests/test_dom-objects-enumeration.py b/marionette/tor_browser_tests/test_dom-objects-enumeration.py
index cdc2a1ecaa952c555113a2e6e89846d217e2e261..90458a6923fe3632944169be5235514259693fe3 100644
--- a/marionette/tor_browser_tests/test_dom-objects-enumeration.py
+++ b/marionette/tor_browser_tests/test_dom-objects-enumeration.py
@@ -758,6 +758,8 @@ class Test(testsuite.TorBrowserTest):
             expectedObjects.remove("content")
         if self.get_version() >= 82:
             expectedObjects = expectedObjects.union({"MediaMetadata","MediaSession","Sanitizer"})
+        if self.get_version() >= 83 and self.is_early_beta_or_earlier():
+            expectedObjects = expectedObjects.union({"onbeforeinput"})
 
         with self.marionette.using_context('content'):
             self.marionette.navigate(self.test_page_file_url)