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How to Add preferences to Firefox through Windows Server Group Policy

Hi everyone. I have installed Firefox on all windows 10 workstations and I have also installed latest Firefox Group Policy ADMX on Server. I need to set some preferences … (read more)

Hi everyone. I have installed Firefox on all windows 10 workstations and I have also installed latest Firefox Group Policy ADMX on Server. I need to set some preferences on all Workstations. The preferences that I want to set are the ones that can be found in about:config.

But the problem is that only some of these preferences exist in Group Policy by default and it says "deprecated". I know that I can add additional about:config preferences in a Group Policy object called "Preferences". But no matter how I enter the format or how I change the JASON file, no preference policy is applied to Firefox in workstations. By the way when I change "Preferences" gpo in group Policy the next Policy called "Preferences (JASON on one file)" does also change. I have thoroughly searched the web and Mozilla support and have tested all suggestions but all to no avail. Can you please help me and Give me an example of how to do that? I would appreciate any answer in advance.

Asked by manoochehr.zangooei 1 month ago

Answered by TyDraniu 1 month ago

Policy to set startpage not working on first start / Linux

Hello, I am using firefox 126.0 on linux mint 21.2 with an policy file in the directory "/usr/lib/firefox/distribution/policies.json". This is just working fine with one… (read more)

Hello,

I am using firefox 126.0 on linux mint 21.2 with an policy file in the directory "/usr/lib/firefox/distribution/policies.json". This is just working fine with one little problem. When opening firefox the first time, it does not apply the policy to set the startpage to the url in the policy file. All other policies seem to be applied correctly. I figured out, that at the first start of firefox, no user profile (folder) "~/.mozilla/" exists. When i click the little "house" button on the the top besides the refresh buton, the correct startpage is shown. After the first start this folder is created and then the policies work fine even the startpage shows up directly. Can I somehow use a template profiles-folder for new users, so they have the correct firefox feeling at the first start or is there something missing in my policy file ? The policy file has rights set to "644 root:root" Image of the policy file is attached because I can't upload files other then images.

Thank you.

Asked by naumaj 3 weeks ago

Group Policy Settings list with description

Hi, I would like to implement GPO settings for Firefox, and would like to review the list of the policies with description (explanation of what the policy is about and w… (read more)

Hi, I would like to implement GPO settings for Firefox, and would like to review the list of the policies with description (explanation of what the policy is about and what happens if its enabled or disabled) on a table or excel format. Is there a site or page that will give me that list?

Asked by aurel_dimaculangan 1 month ago

Last reply by cor-el 1 month ago

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Unable to set Homepage via Intune configuration profile for MacOS

Hi everyone, I'm trying to standardize the homepage for the browser which enrolled with Intune on MacOS. I have imported the .plist file as below with the preference doma… (read more)

Hi everyone, I'm trying to standardize the homepage for the browser which enrolled with Intune on MacOS. I have imported the .plist file as below with the preference domain name as "org.mozilla.firefox". After applied, it returned error and nothing has been changed on the browser. Thanks.

<key>Homepage</key> <key>URL</key> <string>http://example.com</string> <key>StartPage</key> <string>homepage</string>

Asked by thomas1881 1 year ago

Answered by Mike Kaply 1 year ago

  • Solved

Firefox Intune OMA-URI error

Dear Everyone, Facing issue with deploying Configuration Profile for Extension Settings via Intune. Tried ADMX imported template with adding there "block all extensions"… (read more)

Dear Everyone, Facing issue with deploying Configuration Profile for Extension Settings via Intune. Tried ADMX imported template with adding there "block all extensions" and allow certain ones. Worked perfect in Jamf, for Intune failing all time. We are using Firefox v.121, policies are for v.120, but I am in doubt that this is the issue. Can someone review and let me know if there any issue or may be changes? Using latest instructions https://mozilla.github.io/policy-templates/#extensionsettings Also here is my OMA, very easy.

OMA used ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings

Value(string):

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

 "*": {
   "blocked_install_message": "Security Test",
   "installation_mode": "blocked",
   "allowed_types": ["extension"]
 },
 "{bf855ead-d7c3-4c7b-9f88-9a7e75c0efdf}": {
   "installation_mode": "force_installed",
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/zoom-new-scheduler/latest.xpi"
 },
   "@react-devtools": {
   "installation_mode": "allowed"
 }

}'/>

Asked by Valery Volos 5 months ago

Answered by Mike Kaply 5 months ago

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Proxy not working

Hello, from Terminal Servers, it is not possible to browse the Internet via FortiGate's explicit proxy from the Firefox browser, while there is no problem with Chrome or … (read more)

Hello, from Terminal Servers, it is not possible to browse the Internet via FortiGate's explicit proxy from the Firefox browser, while there is no problem with Chrome or Edge. When the user tries to browse external sites, the proxy sends the error page "You need to authenticate to use this service". It seems that Firefox does not pass user authentication to FortiGate. The proxy authenticates users per session via Kerberos tickets.

Firefox version: 115.5.0esr

I also performed the following settings to pass the Kerberos ticket to the proxy without success: https://people.redhat.com/mikeb/negotiate/

I also noticed that it is not possible to change the "network.negotiate-auth.allow-proxies" setting from "false" to "true." Is this my problem? Is it normal that it cannot be changed?

Attached are the settings.

Thank you in advance.

Asked by akas89 6 months ago

Last reply by Mike Kaply 4 months ago

Trigger Update through command line or script

Is there a way to trigger a Firefox browser update through command line or script? I need to trigger an update across a few hundered computers and I can do this, but thr… (read more)

Is there a way to trigger a Firefox browser update through command line or script? I need to trigger an update across a few hundered computers and I can do this, but through command line or script automation. What is the command line syntax to do this, if there is any?

Thank you for your help

Asked by pcdl 2 months ago

Last reply by cor-el 2 months ago

How to disable welcome back notification?

Seems to be new in 122.0 because i never received that before. It asks if you want to open links with Firefox and if you do, it sets file associations for htm / html and … (read more)

Seems to be new in 122.0 because i never received that before. It asks if you want to open links with Firefox and if you do, it sets file associations for htm / html and things like that. However in a company environment i want to supress that notification

Asked by Tynth 4 months ago

Last reply by Mike Kaply 4 months ago

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GPO questions

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 won… (read more)

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

Asked by ericbenavidez 11 months ago

Last reply by Mike Kaply 11 months ago

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A few questions re: policies.json

Hi there, I'm playing with policies.json on Linux/Ubuntu now, trying to improve my knowledge of Firefox customization through different policies and user interaction aft… (read more)

Hi there,

I'm playing with policies.json on Linux/Ubuntu now, trying to improve my knowledge of Firefox customization through different policies and user interaction after the Firefox deployment. I added a custom bookmark and extension, which show and install okay when I restart the browser. But when I delete them from within the browser and restart Firefox, they show up again. To avoid this, I can delete /etc/firefox/policies/policies.json after the Firefox deployment. Hence my questions:

  • Is the deletion of the JSON file after the Firefox deployment a reasonable option at all?
  • If yes, how can I automate the process silently, without user interaction?
  • If no, what would be your advice to let users modify the browser settings like removing extension(s) or bookmark(s) set in policies.json so that they do not reappear after the browser restart?

Thank you! Rustam

Asked by ralhas 9 months ago

Last reply by Mike Kaply 9 months ago

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Looking for End Of Life (EOL) dates

We have about 35 versions of firefox running across the enterprise (38 to 91) and I have been tasked to update the EOL dates for all versions we have to help bring things… (read more)

We have about 35 versions of firefox running across the enterprise (38 to 91) and I have been tasked to update the EOL dates for all versions we have to help bring things up to speed and know what is/is not supported.

I found this page with release dates (https://www.mozilla.org/en-US/firefox/releases/) but nothing about when a version has reached it's EOL. Any help would be appreciated.

Asked by david.burrows 1 year ago

Last reply by James 1 year ago

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How to disable download in firefox via GPO

we want to control the actions over all browsers, don't want common users to download anything via firefox, how to disable the download in firefox via GPO? thanks. … (read more)

we want to control the actions over all browsers, don't want common users to download anything via firefox, how to disable the download in firefox via GPO? thanks.

Asked by fas910 10 months ago

Last reply by Mike Kaply 10 months ago

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Fail to update firefox

We're exploring the possibility of implementing a mass update for Firefox through backend management, leveraging PowerShell scripts or any applicable method that can stre… (read more)

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.

Asked by slimmonkey 6 months ago

Last reply by Mike Kaply 5 months ago

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  • Archived

Firefox ESR 91.12

Hello, Qualys is detecting Vulnerabilites on our Firefox ESR 91.12 Versions which were patched by MFSA2022-29. It is showing Vulnerabilities because MFSA2022-30 lists CV… (read more)

Hello, Qualys is detecting Vulnerabilites on our Firefox ESR 91.12 Versions which were patched by MFSA2022-29.

It is showing Vulnerabilities because MFSA2022-30 lists CVE's for ESR 102.X and we are on 91.12.

Is there anywhere I can go to get a list of all Vulnerabilities on 91.X to show our Security team, I believe CVE-2022-36314 and CVE-2022-2505 are not present in 91.12 because they are not listed in https://www.mozilla.org/en-US/security/advisories/mfsa2022-29/ but need evidence

Thank You,

Asked by mriley1 1 year ago

Answered by Mike Kaply 1 year ago

  • Archived

Firefox ESR - Maintenance Service - UAC Prompt

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 s… (read more)

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.

Asked by bfrawley 1 year ago

Last reply by Mike Kaply 1 year ago

CyberArk Extension ID

I'm looking to allow the CyberArk extension for FireFox, via our GPO. I am not seeing the application ID for the extension, which is needed. I'm hoping that you folks ca… (read more)

I'm looking to allow the CyberArk extension for FireFox, via our GPO. I am not seeing the application ID for the extension, which is needed.

I'm hoping that you folks can provide that ID.

Thanks!

Asked by dlacivita 3 months ago

Last reply by cor-el 3 months ago

  • Archived

Comment éditer la page "Délai dépassé" ou rediriger vers une page locale.

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 re… (read more)

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

Asked by Yves 1 year ago

Last reply by Mike Kaply 1 year ago