Sorry I do not know the not know the answer, and the topic is not discussed much on this forum but see thread /questions/859507 which includes links to

• Using the Certificate Database Tool https://www.mozilla.org/projects/security/pki/nss/tools/certutil.html
• http://www.appdeploy.com/messageboards/tm.asp?m=52532
• ( presumably the add-on ishttps://addons.mozilla.org/en-US/firefox/addon/gpo-for-firefox/ )

P.S.
There are also some hacks to modify firefox so that some menu items are not obvious. You may also be interested in the Private Browsing options.

• https://addons.mozilla.org/en-US/firefox/addon/disable-private-browsing/
• and a developer's blog http://blog.gerv.net/2012/02/disabling-private-browsing-mode-in-firefox/

Presumably you are aware of Firefox ESR see https://wiki.mozilla.org/Enterprise#How_to_Participate_and_Post

Hi John / Experts,

     Thanks for your information.

I just want to hide the setting, as showed in the attached image. Please help me with brief explanation

Hi Experts & John,

    If i installed this GPOforfirefox add on, the user can easily disable / uninstall. The hidden settings i need to deploy from GP.

Sorry I do not use that add-on and do not know the answer.

I am guessing there will be a Chrome hack that will stop the option displaying. Today being Sumo Day you may get an answer from someone else.

Alternatively try posting on one of the mozillazine forums, they do routinely answer questions on Hacks and add-ons.

• forums.mozillazine.org/index.php

Hi John,

    Thanks for your support.

Please post any the tool, if you got.....