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how to disable common users to modify the settings of "No proxy for" in "Connection Settings"

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  • Last reply by fas910

fas910
fas910
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I am an admin of some servers, i modify the proxy settings of firefox in a GPO, and it works, but now ont thing is that users can modify the settings of "No proxy for" in Connection Settings, then add the urls, then users can access to any web site which they want to, is there a method to disable this? thanks.

I am an admin of some servers, i modify the proxy settings of firefox in a GPO, and it works, but now ont thing is that users can modify the settings of "No proxy for" in Connection Settings, then add the urls, then users can access to any web site which they want to, is there a method to disable this? thanks.
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Chosen solution

Assuming you have "Do not allow proxy settings to be changed" set to Enabled, you also need to Enable "Proxy Passthrough" and leave it blank and it will be locked.

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All Replies (8)

Terry
Terry
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You can create a 'policy'. I will post a link to a github page immediately after this post.

https://support.mozilla.org/en-US/kb/customizing-firefox-using-group-policy-windows

Terry
Terry
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This is the other link.

https://github.com/mozilla/policy-templates#proxy

fas910
fas910 Question owner
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Hi Terry,

Thanks of your reply. My question is to disable the option of "No proxy for" via Firefox template GPO. then it does not work.

cor-el
cor-el
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I've moved the thread to Firefox for Enterprise.

cor-el
cor-el
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See also:

Mike Kaply
Mike Kaply
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Have you locked the proxy settings? If those options aren't locked, that's a Firefox bug.

Mike Kaply
Mike Kaply
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Chosen Solution

Assuming you have "Do not allow proxy settings to be changed" set to Enabled, you also need to Enable "Proxy Passthrough" and leave it blank and it will be locked.

fas910
fas910 Question owner
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iI do only enable "Do not allow proxy settings to be changed" without enable "Proxy Passthrough", it works well after enable it.

Thanks Mike!