https://support.mozilla.org/en-US/kb/how-disable-enterprise-roots-preference this process does not work? Is there another method that will work? Thanks

That should do it, weird that it enables itself back. We're talking desktop here right? Only advanced users know about this file, it can set preferences on startup, overriding the prefs.js file. You could create this user.js and place that preference inside, forcing it false at every startup. It goes in the profile folder, where prefs.js is too.

Duplicated post now sure why. Let me just add this while im at it. You can access profile folder by writing in the address: about:profiles Enter Click the button for the local profile to open the folder.

Hi. Apologies I have only just seen these replies. Thank you for responding. I am wondering if you can give a step by step of what to do please? I have found about:profiles and the page opens up but I am not an expert on what to do next. yes, it is desk top windows 11. I have tried multiple times now to put the settings as FALSE via about:config then entering enterprise. And I have deleted the Enterprise roots from the registry, but it just keeps coming back. I have reinstalled Firefox, removed any extensions, still the problems exists?

Thanks for any help/ advice that anyone can give.

Regards

In the profile folder you can create a regular txt file and rename it user.js being that .js is the extension, you replace .txt to the .js Open the file with any text tool like notepad and place these lines:

user_pref("security.certerrors.mitm.auto_enable_enterprise_roots", false); user_pref("security.enterprise_roots.enabled", false);

save. Restart browser.

These are forced at startup, might fix it, but it's not really a fix if we dont find out the reason behind the behaviour.