Get rid of the new Welcome Page for QA testing (since v 142.0)

[L Hombre]

Hi, we use a lengthy user.js in the prefs for  firefox for unattended QA testing.

But since version 142.0 we get the welcome page...previously it did work without welcome page.

Any hint how to switch off this new threat for QA?

We start 

firefox --new-instance -profile <hash>.profile

<hash>.profile has a user.js with

user_pref("dom.disable_open_during_load",false);

user_pref("browser.translations.automaticallyPopup",false);

user_pref("browser.startup.page",0);

user_pref("browser.startup.homepage","");

user_pref("datareporting.healthreport.uploadEnabled",false);

user_pref("datareporting.policy.dataSubmissionEnabled",false)

user_pref("datareporting.sessions.current.clean", true);

Thanks in Advance

[Julian Descottes]

Test automation protocols set `termsofuse.bypassNotification` to `true` to bypass the notification so you can probably do the same.

https://searchfox.org/firefox-main/rev/a76c4aa96f82857dbd0c679e834adb94626ed43a/remote/shared/RecommendedPreferences.sys.mjs#378

Any reason you are not using WebDriver/Marionette/WebDriver BiDi for your automation scenario? 

Julian

[L Hombre]

Thanks Julian, I tried with 

user_pref("termsofuse.bypassNotification",true);

but still the Welcome page comes up.

>>Any reason you are not using WebDriver/Marionette/WebDriver BiDi for your automation scenario? 

We have a home grown automation which isn't depending on Webdriver etc, simpler to maintain for us.

This did work so far for all major browsers.

Regards, Leo

[L Hombre]

After some fiddling with my build system it turned out that 

user_pref("termsofuse.bypassNotification",true);

actually was the solution...so please forget my previous mail.

Thank your for pointing out !

jdesc...@mozilla.com schrieb am Freitag, 22. August 2025 um 18:29:12 UTC+2: