Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to prevent old UserProfile settings overrule the locked down mozilla.cfg

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by cor-el

alpejan
alpejan
more options

I've a locked down deployment of Firefox v.42. which works great. I use the method of the mozilla.cfg and the local-settings.js. The user can't change the settings which I specify.

But when a user has an old "Mozilla" folder in their user profile these settings overrule. I can't find an answer how I can prevent this.

With other words, I don't want the Firefox settings in the user profile to be loaded. (Because I am virtualizing FF for a point solution).

I've a locked down deployment of Firefox v.42. which works great. I use the method of the mozilla.cfg and the local-settings.js. The user can't change the settings which I specify. But when a user has an old "Mozilla" folder in their user profile these settings overrule. I can't find an answer how I can prevent this. With other words, I don't want the Firefox settings in the user profile to be loaded. (Because I am virtualizing FF for a point solution).

All Replies (1)

cor-el
cor-el
  • Moderator
more options

I'm not sure if I understand your scenario.

Can you give more details and possibly attach a screenshot?

The mozilla.cfg file should work globally when the Firefox version that includes the mozilla.cfg file is started.

Are you talking about a file in the Firefox profile folder or is this about something else like an "Old Firefox Data" folder on the desktop?