--- a/layout/tools/reftest/runreftest.py
+++ b/layout/tools/reftest/runreftest.py
@@ -169,17 +169,17 @@ class ReftestResolver(object):
             while not os.path.exists(os.path.join(dirname, default_manifest)):
                 dirname, suffix = os.path.split(dirname)
                 pathname = os.path.join(suffix, pathname)
                 if os.path.dirname(dirname) == dirname:
                     found = False
                     break
             if found:
                 rv = [(os.path.join(dirname, default_manifest),
-                       r".*(?:/|\\)%s$" % pathname)]
+                       r".*(?:/|\\)%s(?:[#?].*)?$" % pathname)]
 
         return rv
 
     def absManifestPath(self, path):
         return os.path.normpath(os.path.abspath(path))
 
     def manifestURL(self, options, path):
         return "file://%s" % path