diff --git a/tests-qa/acceptance/ressources/Browser.robot b/tests-qa/acceptance/ressources/Browser.robot
index 9f0b041f76..0fb7482efa 100644
--- a/tests-qa/acceptance/ressources/Browser.robot
+++ b/tests-qa/acceptance/ressources/Browser.robot
@@ -29,8 +29,8 @@ ${HEADLESS}              ${True}
     Log       Open Browser Firefox
 
     ${firefox_options} =     Evaluate    sys.modules['selenium.webdriver'].firefox.webdriver.Options()    sys, selenium.webdriver
-    Call Method    ${firefox_options}   add_argument    strictFileInteractability ${FALSE}
-    Call Method    ${firefox_options}   add_argument    timezone UTC-05:00
+    Call Method    ${firefox_options}   set_preference    strictFileInteractability    ${FALSE}
+    Call Method    ${firefox_options}   set_preference    timezone    UTC-05:00
 
     Run Keyword If      ${HEADLESS}
     ...                 Call Method    ${firefox_options}   add_argument    -headless