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Can I disable browser using http3 protocol externally ?

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

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I know users are allow to disable http3 through "about:config", and it works.

However, I have to apply to multiple devices by script and the risk page might be a challenge for me.

I tried to edit prefs.js, but it will still be overwrite even I restart my device. (Re-install is not allowed)

Is there any alternative way to disable http3, such as regedit key?

Or is there method to keep pref.js unchangeable?

I know users are allow to disable http3 through "about:config", and it works. However, I have to apply to multiple devices by script and the risk page might be a challenge for me. I tried to edit prefs.js, but it will still be overwrite even I restart my device. (Re-install is not allowed) Is there any alternative way to disable http3, such as regedit key? Or is there method to keep pref.js unchangeable?

Chosen solution

Hello,

You could try a regedit/gpo solution. This is your best option, as they are not overridable by a normal user. See Customizing Firefox Using Group Policy (Windows) and Enforcing policies on Firefox for Enterprise for information on that.

You can also try user.js, which can edit preferences that about:config can.

user.js is a file loaded at Firefox startup which can set preferences in a fashion of user_pref({Preference (string)}, {Preference value});

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Chosen Solution

Hello,

You could try a regedit/gpo solution. This is your best option, as they are not overridable by a normal user. See Customizing Firefox Using Group Policy (Windows) and Enforcing policies on Firefox for Enterprise for information on that.

You can also try user.js, which can edit preferences that about:config can.

user.js is a file loaded at Firefox startup which can set preferences in a fashion of user_pref({Preference (string)}, {Preference value});

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Thanks for your reply.

The file user.js works for me, my script will work on this part.

By this way, I have checked the policy list, but they do not meet my need to disable http3.

If there is any misunderstanding, please tell me, I'm newbie at firefox.

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You can use the Preferences policy that supports network (network.http.http3.enabled) preferences.