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Need to change ntlmv1 settings for users

  • 1 reply
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  • Last reply by cor-el

jagiles
jagiles
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We are currently using Firefox ESR 38.2.0 with our RHEL 6.7 workstations and need to change the network.negotiate-auth.allow-insecure-ntlm-v1 from the default of TRUE to FALSE.

We tried putting a .js file in /usr/lib64/firefox/defaults/preferences to change it, but the change is ignored.

When we try another setting in the file, such as perf("network.negotiate-auth.allow-insecure-ntlm-v1-https", false), then the change is made, however, with the ntlm-v1 setting, it is ignored in the file.

We can change the user_perf for network.negotiate-auth.allow-insecure-ntlm-v1 on a per user bases, but as an enterprise we would like to make this change for multiple users at once and not on a per profile.

Is there any way to do this, or is creating a script and placing it in /etc/profile.d the best option?

Thanks! Joe Giles

We are currently using Firefox ESR 38.2.0 with our RHEL 6.7 workstations and need to change the network.negotiate-auth.allow-insecure-ntlm-v1 from the default of TRUE to FALSE. We tried putting a .js file in /usr/lib64/firefox/defaults/preferences to change it, but the change is ignored. When we try another setting in the file, such as perf("network.negotiate-auth.allow-insecure-ntlm-v1-https", false), then the change is made, however, with the ntlm-v1 setting, it is ignored in the file. We can change the user_perf for network.negotiate-auth.allow-insecure-ntlm-v1 on a per user bases, but as an enterprise we would like to make this change for multiple users at once and not on a per profile. Is there any way to do this, or is creating a script and placing it in /etc/profile.d the best option? Thanks! Joe Giles

Chosen solution

You can use the mozilla.cfg file in the Firefox program folder to set or lock preferences and run privileged JavaScript code.

A local-settings.js file needs to be placed in the "defaults/pref" folder where also the channel-prefs.js file is located to specify using mozilla.cfg. 

pref("general.config.filename", "mozilla.cfg");
pref("general.config.obscure_value", 0);

These functions can be used in the mozilla.cfg file: 

defaultPref();	// set new default value
pref();		// set pref, allow changes in current session
lockPref();	// lock pref, disallow changes

The mozilla.cfg file needs to start with a comment line (//).

See Configuration:

See also:

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cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Chosen Solution

You can use the mozilla.cfg file in the Firefox program folder to set or lock preferences and run privileged JavaScript code.

A local-settings.js file needs to be placed in the "defaults/pref" folder where also the channel-prefs.js file is located to specify using mozilla.cfg. 

pref("general.config.filename", "mozilla.cfg");
pref("general.config.obscure_value", 0);

These functions can be used in the mozilla.cfg file: 

defaultPref();	// set new default value
pref();		// set pref, allow changes in current session
lockPref();	// lock pref, disallow changes

The mozilla.cfg file needs to start with a comment line (//).

See Configuration:

See also: