diff --git a/py/selenium/webdriver/firefox/firefox_binary.py b/py/selenium/webdriver/firefox/firefox_binary.py
index a96c746478071..5bd1daeb49c51 100644
--- a/py/selenium/webdriver/firefox/firefox_binary.py
+++ b/py/selenium/webdriver/firefox/firefox_binary.py
@@ -204,7 +204,7 @@ def _modify_link_library_path(self):
         self._firefox_env["LD_LIBRARY_PATH"] = new_ld_lib_path
         self._firefox_env["LD_PRELOAD"] = self.NO_FOCUS_LIBRARY_NAME
 
-    def _extract_and_check(self, profile, no_focus_so_name, x86, amd64):
+    def _extract_and_check(self, profile, x86, amd64):
 
         paths = [x86, amd64]
         built_path = ""