Firefox for Enterprise Community Forum

We try to deploy Extension Management Settings via GPO.

Goal is to allow only whitelisted extensions, but don't block themes, dictionaries and locales.

Below find the JSON-settings deployed to the client, which should allow all themes and whitelisted extensions. Unfortunately this blocks everything except whitelisted IDs. See example screenshot with error-message, when trying to install a theme. We don't want to whitelist locales or themes, they should be still allowed for installation.

What I'm doing wrong? - Thanks for your feedback.

##############

{
"*": {
"installation_mode": "blocked",
"allowed_types": ["theme"]
},
"uBlock0@raymondhill.net": {
"installation_mode": "allowed"
},
"jid1-ZSMfwe4lCAw9oQ@jetpack": {
"installation_mode": "allowed"
}
}

This might be a simple question. Does Firefox ESR still supports NTLM v1 ? Can we still add the value "network.negotiate-auth.delegation-uris" in preference. Does that enabled NTLM v1. Is there any document or release notes that states Firefox is disabling this setting from Firefox 78 and later. Some how I am not able to find it in release notes.

Hello, I am trying to manage Firefox Extension using "Extension Setting" via Intune. Source: https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings I am testing below JSON for testing. <enabled/> <data id="ExtensionSettings" value=' {

 "*": {
   "blocked_install_message": "Not Allowed contact HelpDesk.",
   "install_sources": ["https://www.example.com/*"],
   "installation_mode": "blocked",
   "allowed_types": ["extension"]
 },
 "uBlock0@raymondhill.net": {
   "installation_mode": "force_installed",
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
 },
   "https-everywhere@eff.org": {
   "installation_mode": "allowed"
 },
 "jetpack-extension@dashlane.com": {
   "installation_mode": "allowed",
   "install_url": "https://prod.extensions.dashlane.com/downloads/firefox/dashlane-latest-fx.xpi"
 }

}'/>

When deployed to test devices, all extension previously installed get removed and Ublock get installed, seem like working as intended but when I try to install any "Allowed" I get the block installed message. I see no error in "about:policies". I don't know where else to look for why its getting blocked?

Any help will be much appreciated.

I am installing Firefox via microsoft endpoint, and deploying multi account containers with the OMA-URI policy for extensions. (this blog page is super helpful! https://securitygeneralist.blogspot.com/2019/08/auto-installing-extensions-on-firefox.html )

The extension by default has containers for Personal, Work, Banking, Shopping.

Is there a way to automatically remove that default container list as part of the install?

Even better, is there a way to create a different default containers list through Endpoint?

Thanks

We have a requirement to limit Firefox to just one internal website. Other browsers should have unlimited access, so we do not want to block websites on operating system level. I do not find any solutions in ADMX or add-ons. Please advise if anybody has a trick under the sleeves ? Thank you.

Hello, in Firefox browser, my organization has always blocked all extensions except for ones we allow through OMA-URI ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings.

About a month ago this stopped working and our end users can now install any extension in the Firefox browser that they choose, without approval, creating a security risk.

When checking in about:policies, there is a policy error: Unable to parse JSON for ExtensionSettings. We have checked with Microsoft Intune support and they verified that the policy looks to be configured and targeted correctly.

Here is a snippet of our JSON, this is a test policy where microsoft support had us remove "about:addons" from the 'install sources'. Both test and production policies are not working.

<enabled/>
<data id="ExtensionSettings" value='
{
    "*": {
        "blocked_install_message": "Contact Service Line",
        "install_sources": ["https://addons.mozilla.org/*"],
        "installation_mode": "blocked",
        "allowed_types": ["extension"]
    },
    "cloudmetering@snowsoftware.com": {
        "installation_mode": "force_installed",
        "install_url": "file:///C:/Program Files/Snow Software/Inventory/Agent/FFCloudmetering.xpi"
    },
    "fpdlpffext2@forcepoint.com": {
        "installation_mode": "force_installed",
        "install_url": "file:///C:/Program Files/Websense/Websense Endpoint/winFFext.xpi"
    },
    "jid1-5AULKXLKGyjuLQ@jetpack": {
        "installation_mode": "allowed"
    },
    "abb@amazon.com": {
        "installation_mode": "allowed"
    },
    "ciscowebexstart1@cisco.com": {
        "installation_mode": "allowed"
    },
    "linkedinConverted@firefox-extension": {
        "installation_mode": "allowed"
    },
    "{7bc53591-5218-45a0-b572-4366979097fd}": {
        "installation_mode": "allowed"
    },
    "queryamoid@kaply.com": {
        "installation_mode": "allowed"
    },
    "jid1-93WyvpgvxzGATw@jetpack": {
        "installation_mode": "allowed"
    },

Is this a bug? Or something wrong with our configuration? Has firefox changed the requirements of the extensionsettings OMA-URI?

Thanks for any help in advance.

Hi all,

I need to be able to disable the option to save Credit Card/Debit cards through group policy, has anyone got a few steps to help me through this?

Thank You

I am currently trying to configure a very old network switch that requires Java. I have tried using the Firefox ESR (Extended Support Release) but i cannot seem to find or get the java plugin installed. I also tried downloading and installing firefox version 51.

What could i do to resolve this issue? I also tried using internet explorer but my computer refuses to install internet explorer because "it is already installed" even though it is not.

Hi,

I've been struggling for a week to try and get our extensions managed in Firefox. Firstly I tried doing it in Intune through the Extension Management setting in the ADMX however that wouldn't work as it couldn't parse the JSON. Then I've tried using the OMA-URI ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings

I'm now getting a straight up error in Intune -2016281112 (0x87d1fde8). I've followed the documentation as best as I can but it still doesn't seem to work. In the Intune logs there is no record of the Config profile even being attempted. Any ideas as to what is causing this error? Here is the full code being used for the OMA-URI string:

<enabled/>
<data id="ExtensionSettings" value='
{

   "*": {
       "blocked_install_message": "This extension is blocked. Please contact the helpdesk for further assistance.",
       "install_sources": ["about:addons","https://addons.mozilla.org/*"],
       "installation_mode": "blocked",
       "allowed_types": ["extension"]
   },
   "rested@restedclient": {
       "installation_mode": "allowed"
   },
   "{c45c406e-ab73-11d8-be73-000a95be3b12}": {
       "installation_mode": "allowed"
   },
   "{5caff8cc-3d2e-4110-a88a-003cc85b3858}": {
       "installation_mode": "allowed"
   },
   "selenium-ide": {
       "installation_mode": "allowed"
   },
   "{a6fd85ed-e919-4a43-a5af-8da18bda539f}": {
       "installation_mode": "allowed"
   },
   "{16a49f65-1369-4839-a5ef-db2581e08b16}": {
       "installation_mode": "allowed"
   },
   "{5384767E-00D9-40E9-B72F-9CC39D655D6F}": {
       "installation_mode": "allowed"
   },
   "{83efb7a7-cf21-4f94-840a-316f651053ef}": {
       "installation_mode": "allowed"
   },
   "{edfc63b3-fc9b-4b6b-b9bf-4561ad548044}": {
       "installation_mode": "allowed"
   },
    "{f1a3d59a-f759-4d03-9545-6f741e64524e}": {
       "installation_mode": "allowed"
   },
    "cors-everywhere@spenibus": {
       "installation_mode": "allowed"
   }
}'/>

Hi,

I deployed the last Firefox ESR update and I just found about this new feature : https://support.mozilla.org/en-US/kb/manage-downloads-preferences-using-downloads-menu

So files are now downloaded and users are no longer prompted for what to do. My question is can we change this to "Ask whether to open or save files" using policies.json?

Kind regards,

McB

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy Value (string):

<enabled/> <data id="ProxyLocked" value="true | false"/> <data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/> <data id="HTTPProxy" value="https://httpproxy.example.com"/> <data id="UseHTTPProxyForAllProtocols" value="true | false"/> <data id="SSLProxy" value="https://sslproxy.example.com"/> <data id="FTPProxy" value="https://ftpproxy.example.com"/> <data id="SOCKSProxy" value="https://socksproxy.example.com"/> <data id="SOCKSVersion" value="4 | 5"/> <data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/> <data id="Passthrough" value="<local>" >="" <data="" <="" p=""></data>

This has mixure of String and Integer , when we configure as string and use one from the above or leaving blank or setting only string , it failed the policy with error - -2016281112

I have an issue on a Mac OS Server environment with home folders. The user's login to the MAC which authenticates to the Open Directory MAC server giving home folders to the logged-on users that reside on the server and not the local workstation. Users commonly use different computers to log in. What we're finding is that the users are increasingly getting the error message that a copy of firefox is open and firefox cannot open.

Removing the lock file solves the issue.

cd ~/Library/Application\ Support/Firefox/Profiles/ cd uniqueid.default rm -rf .parentlock

Is there a way to avoid this? We have the most current version of FF installed.