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

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L Hombre

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Aug 22, 2025, 11:56:34 AMAug 22
to firef...@mozilla.org
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


Screenshot 2025-08-22 at 17.36.26.png

Julian Descottes

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Aug 22, 2025, 12:29:12 PMAug 22
to firef...@mozilla.org, L Hombre
Test automation protocols set `termsofuse.bypassNotification` to `true` to bypass the notification so you can probably do the same.

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

L Hombre

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Aug 26, 2025, 9:49:32 AMAug 26
to firef...@mozilla.org, jdesc...@mozilla.com, 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

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Aug 26, 2025, 9:49:43 AMAug 26
to firef...@mozilla.org, jdesc...@mozilla.com, 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:
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