Firefox for Enterprise Support Forum

Hello

We use our own CA to secure some websites on the internal network. Until version 101.0, the SSL was working correctly. I have updated today to firefox 101 and all our internal websites started giving SSL_ERROR_BAD_CERT_DOMAIN. There are no issues with external CA issued certificates, so I'm assuming it is something related to the way we generate the certificates. Were there any changes done at version 101 which might reject certificates with a valid common name? Is there a way to disable it and revert to version 100 options?

Thank you

I would like to hide the menu button located at the top right (the three lines button) or hide the access to the firefox settings (about:preferences) but I cannot find any GPO to do this. How can I hide this button?

Thanks in advance

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.

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

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

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"
   }
}'/>

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 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

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.

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.

I am pushing out bookmarks company-wide through Intune on users Laptops. I spoke with Microsoft support and the configuration policy is created correctly and I followed Firefox's support page in creating them. It seems that the new JSON script that tells Firefox what bookmarks is unable to parse.

Anyone know if Firefox had an update that prevents intune from sending the JSON file?

Error message given through firefox.

"Unable to parse JSON for ManagedBookmarks"

I am wondering if I can get some help configuring some GPO for Firefox on our new domain we are building. I want to be able to block private browsing as well as I was wondering if there is an option to force firefox to sign in with certain accounts only so we can monitor students as we are a school district

Dear Team, Our application is accessible on Firefox v101.0.1. But recently we have upgraded our desktops with Firefox v112.0.1. The same application accessible on Firefox 101.0.1 is not able to accessible on v112.0.1.

The error code we could see on browser is SEC_ERROR+PKCS11_GENERAL_ERROR. We have already raised a case with HTTP support team but they have suggested to check at browser level. We had also collected traces from firefox but unable to upload the same. Kindly help here at the earliest. Thanks, Shruti Fegade

Hello, I want to increase my productivity and add Unhook: Remove YouTube Recommended Videos Comments It hides comments and suggested videos from YouTube, or more videos, but unfortunately I can delete or deactivate it easily. I want to prevent it permanently, and also add Cold Turkey Blocker I want to prevent myself and any user from deleting it, and then I will block access to the local group policy editor using Cold Turkey Blocker And when I do this through the local group policy editor I get an error message, please help me

Hi, I would like to migrate my 5000 users over onto FF. One of the requirements is to preload bookmarks for these users, something we can do with Chrome already. We are running on Windows devices and use an ADMX and an XML (listing the bookmarks and folders) to push this policy via InTune. I can't find any means of replicating it in FF... is it possible?

Hi All,

I am trying to block the Last Pass extension in Firefox using Intune, and the ADMX configuration setting is not working on the endpoint. I've used the templates found here

https://github.com/mozilla/policy-templates/releases / Target Extension "support@lastpass.com"

And have tried using the imported admx template as well as a single line OMA-URI.

I've worked with Microsoft, and they see the correct settings on the device as pushed out via Intune, so they said it is not on their end. Any ideas why blocking named browser extenstions is not working? I've configured a few other settings with Intune/ADMX templates and they work.

Thanks! -Doug

I am trying trying to install the keeper extension via intune but am having trouble with the oma-uri. It looks right to me but I might be missing something. Prior to running this I followed https://mzl.la/3vYAIYT and added the Firefox ADMX. Both run successfully but it does not add the extension. Firefox version 116.0.3

OMA-URI: ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings

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

 "*": {
   "blocked_install_message": Opps, this may have been a mistake reach out to IT.",
   "install_sources":["about:addons","https://addons.mozilla.org/"],
   "installation_mode": "allowed",
   "allowed_types": ["extension" ,"theme"]
 },
 "KeeperFFStoreExtension@KeeperSecurityInc": {
   "installation_mode": "normal_installed",
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/keeper-password-manager/latest.xpi",

"default_area": "navbar"

 },

}'/>

Hi there,

We would like to disable ECH on our browsers as it is interfering with our Anti-virus Website blocks. I have identified the settings that need to be changed in about:config and was able to configure 2 of them to be controlled via a registry key but was not able to for another 3 as their keys should be placed in a different Key in the registry. I have searched all over but cannot identify the name for this Key.

The settings I need to manage are in the image. I was able to configure the settings beginning with network.dns but I am not sure how to manage the settings beginning with security.tls.ech

Any help would be much appreciated

Hi,

I'm blocked because for my company i have to make a GPO that will setup the default handler for pdf files. I picked up different codes on internet but it went the same way for all of them, it didn't work. Im pretty sure that's not a GPO application issue because actually all the others setings are working perfectly.

The json code was paste on the Handlers settings as u can see in the attachement.

Hopefully that i will find help there.

Cordially.

We're exploring the possibility of implementing a mass update for Firefox through backend management, leveraging PowerShell scripts or any applicable method that can streamline the update process for our users.

Additionally, we've encountered instances where users have installed Firefox via local profiles, posing challenges for centralized updates. I'd appreciate any insights or guidance on how we can address this issue effectively to ensure these installations align with our centralized management approach.