Firefox for Enterprise Support Forum

Hello

I am looking for a way to disable the QUIC protocol in Firefox by GPO. I got your latest AMDX templates but I don't see the option to modify network.http.http3.enabled.

Either an AMDX template with this option or a Registry will do the trick

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,

We have a vulnerability scanner in our environment that tells us when Firefox needs to be updated. We found that in order to update it, we need to go the settings tab and then to the updates portion of the menu to initiate the update. After this we are asked to restart. Any way to avoid this entire process?

Hello,

We have set up a GPO in our Active Directory environment for the install of Firefox which works great, however since at least version 90, we have had an issue where Firefox won't uninstall automatically when removing the computer object from the security group associated with the GPO. The box is ticked to "uninstall this application when it falls out of scope of management", which works for every other GPO we have created. The computer removes the assignment of the application, but does not then remove the application as it should.

Are you aware of this issue?

Thanks.

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

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.

My organization would like to keep automatic updates for Firefox enabled. However, each update prompts end users to create a new profile. We've provided them with instructions on how to navigate to about:Profiles and find the Firefox profile that has their bookmarks. The same set of instructions then guides them on how to save that profile as their default too. Unfortunately, our end users aren't very good at this and sometimes they have to repeat the process for a few days in a row. Which I assume is due to subsequent Firefox updates, but I'm not sure.

That said, is there anything we can do that'd avoid end users from having to go through this process for every Firefox update?

We have put user and computer startup scripts to detect and delete firefox from our enterprise customers. Firefox cannot be kept SAFe through InfoSec.

InfoSec and SAFe require the business be in charge of security which is what our customers understand. They constantly find firefox out of date and vulnerable. We have tried over and over to use the firefox admx files to force background update both at the computer and user OUs but find that users can uncheck the box and it remains vulnerable and out of compliance. Edge and Chrome can be controlled by the business (not end user) through group policy and kept up to date and we never find either out of date by implementing our policies.

Firefox constantly tells end users how to check the boxes and no group policy can enforce them as we don't see the registry updated even though we even put a registry patch in, firefox is still in the control of the end user and not SAFe. If you don't know what I mean by SAFe, check this out.

https://www.scaledagileframework.com/devops/

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"
   }
}'/>

Bonjour, Je travaille dans un musée. Nous utilisons Firefox sur des pc accessibles pour le public. Comment accéder à "aboutNetErrorCodes.js" pour l'éditer. Je souhaite remplacer le message par défaut de Firefox et rediriger vers une une page en local. Merci pour votre aide. Yves

Hi all,

we are using Mozilla Firefox ESR in our enterprise environment.

Is there a documentation which URL's Firefox uses when (Mozilla Maintenance Service) when it tries to update his version ?

We have tried with following URL's on our Firewall:

aus.mozilla.org aus2.mozilla.org aus3.mozilla.org aus4.mozilla.org aus5.mozilla.org download.cdn.mozilla.net archive.mozilla.org ftp.mozilla.org

It is finding the new version, but when trying to download the update it fails.

Thank you for any help on this case.

We have 50 workstations set up for certain jobs and the users roam as needed. Each workstation has two printers using different media. the printers are controlled by having two instances of Firefox with each having a user profile to use one printer or the other. In addition to printer settings we set a number of other profile settings such as silent printing etc.

Having a profile per user requires a great deal of setup work to allow different users to log in with authentication and to align the printers with the programs which will print to them.

A solution that would allow us to write a copy of a master profile to each new user via a program would be nearly perfect. Thank you,

FF 102.3.0esr (64-bit) says 'You are currently on the update channel' but doesn't update. I see 102.5.0 is available. Originally said policies managed by organization. Enterprises Policies. I Deleted [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox]. Enterprises Policies now gone, but message hasn't changed nor can I update.

Hi Team, I'm using the Zscaler in my network, when I use the Firefox, appear the error:

"Software is Preventing Firefox From Safely Connecting to This Site

www.googleadservices.com is most likely a safe site, but a secure connection could not be established. This issue is caused by Zscaler Root CA, which is either software on your computer or your network.

What can you do about it?

www.googleadservices.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely...." Picture 1

I have root certificate in path: /usr/share/ca-certificates/mozilla$ Picture 2

I run the command for updates CA but it doesn't work: sudo update-ca-certificates

Errors keep popping up.

The certificate not appear in the Certificate manager > Authorities Picture 3

But if I open the firefox > Settings > Privacy & Security> Certifcates > View Certificates > Import And I import the certificate ZscalerRoot.crt and I mark the option "trust this CA to identify websites" the firefox works, and I can open the site without error message.

Picture 4

And the certificate appear in the manager certificate: Picture 5

How can I put the command terminal certificate, which I have on hundreds of machines?

Note: I need to put the certificate only for internet access.

I posted this previously and got zero response and the post is now archived. Hoping for better luck this time.

We have rolled Firefox ESR to all of our computers. On some of them the Maintenance Service is working correctly and installing updates with no user interaction. On other computers, users are getting a UAC prompt to enter admin credentials to install updates. I have tried various changes that I have found across the web from Deleting the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MozillaMaintenance\Security to uninstalling and re-installing the Maintenance Service. All of the users/computers have the same policies applied via Group Policy (Application Autoupdate: Enabled and Disable Update: Disabled) and are not local admins.

I'm trying to configure the "Extension Management" policy for firefox in my company. We have 14 addons to manage. using JSON this will end to a line of about 2500 characters.

when I try to copy the code into the gpo I get a message telling me the limit is 2048 characters.

Is there a way to baypass this limitation ?

thank you