--- a/testing/web-platform/meta/webdriver/tests/navigation/get_title.py.ini
+++ b/testing/web-platform/meta/webdriver/tests/navigation/get_title.py.ini
@@ -1,13 +1,8 @@
 [get_title.py]
   disabled:
     if webrender: bug 1425588
   [test_title_handle_prompt_dismiss]
     expected: FAIL
 
   [test_title_handle_prompt_accept]
     expected: FAIL
-
-  [test_title_after_modification]
-    disabled:
-      if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): wpt-sync Bug 1444558
-

--- a/testing/web-platform/tests/webdriver/tests/navigation/get_title.py
+++ b/testing/web-platform/tests/webdriver/tests/navigation/get_title.py
@@ -1,11 +1,12 @@
 from tests.support.asserts import assert_error, assert_success, assert_dialog_handled
 from tests.support.fixtures import create_dialog
 from tests.support.inline import inline
+from tests.support.wait import wait
 
 
 def read_global(session, name):
     return session.execute_script("return %s;" % name)
 
 
 def get_title(session):
     return session.transport.send(
@@ -144,20 +145,21 @@ def test_title_without_element(session):
     session.url = inline("<h2>Hello</h2>")
 
     result = get_title(session)
     assert_success(result, read_global(session, "document.title"))
 
 
 def test_title_after_modification(session):
     session.url = inline("<title>Initial</title><h2>Hello</h2>")
-    session.execute_script("document.title = 'updated'")
+    session.execute_script("document.title = 'Updated'")
 
-    result = get_title(session)
-    assert_success(result, read_global(session, "document.title"))
+    wait(session,
+         lambda s: assert_success(get_title(s)) == read_global(session, "document.title"),
+         "Document title doesn't match '{}'".format(read_global(session, "document.title")))
 
 
 def test_title_strip_and_collapse(session):
     document = "<title>   a b\tc\nd\t \n e\t\n </title><h2>Hello</h2>"
     session.url = inline(document)
 
     result = get_title(session)
     assert_success(result, read_global(session, "document.title"))