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Intune ExtensionSettings Policy No Longer Working in Firefox

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1 inayo le ngxaki
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Impendulo yokugqibela ngu cor-el

1 kunyanka odlulileyo

1/17/23 21:29

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.

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. <pre><nowiki><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" }, </nowiki></pre><br> 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.

Ilungisiwe Februwari 27, 2023 02:15:20 -0800 ngu cor-el

Isisombulu esikhethiweyo

Hello, was actually just missing an additional closing bracket.

👍 0

Answer 1 · 2023-01-17 21:29:28

TyDraniu

Top 10 Contributor

1/17/23 22:52

Hi, according to the doc it looks OK, except that the last bracket is missing.

Answer 2 · 2023-01-17 21:29:28

victoria.gray Umnini wombuzo

1/18/23 20:42

Hi, yes followed this doc. And las bracket is not missing in actually policy, this was just a snippet.

Answer 3 · 2023-01-17 21:29:28

cor-el

Moderator
Top 10 Contributor

1/21/23 07:33

Your JSON code ends with e comma (,) and is missing the closing curly bracket (})

{
    "*": {
        "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"
    }
}

Answer 4 · 2023-01-17 21:29:28

cor-el

Moderator
Top 10 Contributor

1/21/23 08:00

OK, I missed that you posted a snippet.

I've moved the thread to Firefox for Enterprise since this is about Intune

Ilungisiwe Janyuwari 21, 2023 08:43:24 -0800 ngu cor-el

Answer 5 · 2023-01-17 21:29:28

victoria.gray Umnini wombuzo

1/26/23 04:24

Thank you for moving the thread. Am I responding in the correct place?

I am also receiving the error in the screenshot below when navigating to about:policies in firefox browser and selecting 'errors'.

Here is the complete JSON:

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

   "*": {
       "blocked_install_message": "Contact Service Line",
       "install_sources": ["about:addons","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"
   },
   "WalkmeExtension@walkme.com": {
       "installation_mode": "allowed"
   },
   "{73a6fe31-595d-460b-a920-fcc0f8843232}": {
       "installation_mode": "allowed"
   },
    "@testpilot-containers": {
       "installation_mode": "allowed"
   },
    "uBlock0@raymondhill.net": {
       "installation_mode": "allowed"
   },
    "extension@redux.devtools": {
       "installation_mode": "allowed"
   },
    "jid1-ZAdIEUB7XOzOJw@jetpack": {
       "installation_mode": "allowed"
   },
    "{5caff8cc-3d2e-4110-a88a-003cc85b3858}": {
       "installation_mode": "allowed"
   },
    "{d634138d-c276-4fc8-924b-40a0ea21d284}": {
       "installation_mode": "allowed"
   },
    "jid1-MnnxcxisBPnSXQ@jetpack": {
       "installation_mode": "allowed"
   },
    "{806cbba4-1bd3-4916-9ddc-e719e9ca0cbf}": {
       "installation_mode": "allowed"
   },
    "{c9b5d073-47b4-40df-b9b9-d80601a5ab76}": {
       "installation_mode": "allowed"
   },
    "foxyproxy@eric.h.jung": {
       "installation_mode": "allowed"
   },
    "{943b8007-a895-44af-a672-4f4ea548c95f}": {
       "installation_mode": "allowed"
   },
    "{c4b582ec-4343-438c-bda2-2f691c16c262}": {
       "installation_mode": "allowed"
   },
    "langpack-en-GB@firefox.mozilla.org": {
       "installation_mode": "allowed"
   },
    "addon@darkreader.org": {
       "installation_mode": "allowed"
   },
    "{ef462a4f-5c3a-4781-a453-23ad6fb08fd1}": {
       "installation_mode": "allowed"
   },
    "{506e023c-7f2b-40a3-8066-bc5deb40aebe}": {
       "installation_mode": "allowed"
   },
    "{3507f56d-2ef5-45c1-b6d7-5297a0ba7642}": {
       "installation_mode": "allowed"
   },
    "display-anchors@robwu.nl": {
       "installation_mode": "allowed"
   },
    "https-everywhere@eff.org": {
       "installation_mode": "allowed"
   },
    "@react-devtools": {
       "installation_mode": "allowed"
   },
    "Tab-Session-Manager@sienori": {
       "installation_mode": "allowed"
   },
    "keepassxc-browser@keepassxc.org": {
       "installation_mode": "allowed"
   },
    "{80276c2b-b76c-4f9a-9b8f-8862dead8c3d}": {
       "installation_mode": "allowed"
   },
    "firefox@libraryextension.com": {
       "installation_mode": "allowed"
   },
    "opentabsnexttocurrent@sblask": {
       "installation_mode": "allowed"
   },
    "{d04b0b40-3dab-4f0b-97a6-04ec3eddbfb0}": {
       "installation_mode": "allowed"
   },
    "{79091463-df78-4dc0-a258-fb3724141b5c}": {
       "installation_mode": "allowed"
   },
    "{c5f935cf-9b17-4b85-bed8-9277861b4116}": {
       "installation_mode": "allowed"
   },
    "firefox@ghostery.com": {
       "installation_mode": "allowed"
   },
    "{32af1358-428a-446d-873e-5f8eb5f2a72e}": {
       "installation_mode": "allowed"
   },
    "{e4a12b8a-ab12-449a-b70e-4f54ccaf235e}": {
       "installation_mode": "allowed"
   },
    "multipletab@piro.sakura.ne.jp": {
       "installation_mode": "allowed"
   },
    "targetvechelper@adobe.com": {
       "installation_mode": "allowed"
   },
    "extension@requestly.in": {
       "installation_mode": "allowed"
   },
    "87677a2c52b84ad3a151a4a72f5bd3c4@jetpack": {
       "installation_mode": "allowed"
   },
    "{d7742d87-e61d-4b78-b8a1-b469842139fa}": {
       "installation_mode": "allowed"
   },
    "@contain-facebook": {
       "installation_mode": "allowed"
   },
    "{446900e4-71c2-419f-a6a7-df9c091e268b}": {
       "installation_mode": "allowed"
   },
    "{fc2b8f80-d9a5-4f51-8076-7c7ce3c67ee3}": {
       "installation_mode": "allowed"
   },
    "languagetool-webextension@languagetool.org": {
       "installation_mode": "allowed"
   },
    "keefox@chris.tomlinson": {
       "installation_mode": "allowed"
   },
    "support@lastpass.com": {
       "installation_mode": "allowed"
   },
    "{16a49f65-1369-4839-a5ef-db2581e08b16}": {
       "installation_mode": "allowed"
   },
    "progress_teststudio_extension@telerik.com": {
       "installation_mode": "allowed"
   },
    "{e4a8a97b-f2ed-450b-b12d-ee082ba24781}": {
       "installation_mode": "allowed"
   },
    "{3c078156-979c-498b-8990-85f7987dd929}": {
       "installation_mode": "allowed"
   },
    "{9d4683ff-8d9c-40ad-adb4-9fa895a3a0d7}": {
       "installation_mode": "allowed"
   },
    "uMatrix@raymondhill.net": {
       "installation_mode": "allowed"
   },
    "{201338d1-1eb4-4fa9-8a36-f58959ef9d2f}": {
       "installation_mode": "allowed"
   },
    "{E0B8C461-F8Fb-49B4-8373-FE32E9252800}": {
       "installation_mode": "allowed"
   },
    "svwe@oracle.com": {
       "installation_mode": "allowed"
   },
    "Clipper@OneNote.com": {
       "installation_mode": "allowed"
   },
    "jsonview@brh.numbera.com": {
       "installation_mode": "allowed"
   },
    "{2d2026b3-3b4f-4c50-83a1-0cabb4d1fdfa}": {
       "installation_mode": "allowed"
   },
    "de-CH@dictionaries.addons.mozilla.org": {
       "installation_mode": "allowed"
   },
    "simple-tab-groups@drive4ik": {
       "installation_mode": "allowed"
   },
    "firefox@tampermonkey.net": {
       "installation_mode": "allowed"
   },
    "{0d92d791-1db2-4181-a017-f309b99a620c}": {
       "installation_mode": "allowed"
   },
    "{a6fd85ed-e919-4a43-a5af-8da18bda539f}": {
       "installation_mode": "allowed"

}'/>

Thank you for moving the thread. Am I responding in the correct place? I am also receiving the error in the screenshot below when navigating to about:policies in firefox browser and selecting 'errors'. Here is the complete JSON: <enabled/> <data id="ExtensionSettings" value=' { "*": { "blocked_install_message": "Contact Service Line", "install_sources": ["about:addons","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" }, "WalkmeExtension@walkme.com": { "installation_mode": "allowed" }, "{73a6fe31-595d-460b-a920-fcc0f8843232}": { "installation_mode": "allowed" }, "@testpilot-containers": { "installation_mode": "allowed" }, "uBlock0@raymondhill.net": { "installation_mode": "allowed" }, "extension@redux.devtools": { "installation_mode": "allowed" }, "jid1-ZAdIEUB7XOzOJw@jetpack": { "installation_mode": "allowed" }, "{5caff8cc-3d2e-4110-a88a-003cc85b3858}": { "installation_mode": "allowed" }, "{d634138d-c276-4fc8-924b-40a0ea21d284}": { "installation_mode": "allowed" }, "jid1-MnnxcxisBPnSXQ@jetpack": { "installation_mode": "allowed" }, "{806cbba4-1bd3-4916-9ddc-e719e9ca0cbf}": { "installation_mode": "allowed" }, "{c9b5d073-47b4-40df-b9b9-d80601a5ab76}": { "installation_mode": "allowed" }, "foxyproxy@eric.h.jung": { "installation_mode": "allowed" }, "{943b8007-a895-44af-a672-4f4ea548c95f}": { "installation_mode": "allowed" }, "{c4b582ec-4343-438c-bda2-2f691c16c262}": { "installation_mode": "allowed" }, "langpack-en-GB@firefox.mozilla.org": { "installation_mode": "allowed" }, "addon@darkreader.org": { "installation_mode": "allowed" }, "{ef462a4f-5c3a-4781-a453-23ad6fb08fd1}": { "installation_mode": "allowed" }, "{506e023c-7f2b-40a3-8066-bc5deb40aebe}": { "installation_mode": "allowed" }, "{3507f56d-2ef5-45c1-b6d7-5297a0ba7642}": { "installation_mode": "allowed" }, "display-anchors@robwu.nl": { "installation_mode": "allowed" }, "https-everywhere@eff.org": { "installation_mode": "allowed" }, "@react-devtools": { "installation_mode": "allowed" }, "Tab-Session-Manager@sienori": { "installation_mode": "allowed" }, "keepassxc-browser@keepassxc.org": { "installation_mode": "allowed" }, "{80276c2b-b76c-4f9a-9b8f-8862dead8c3d}": { "installation_mode": "allowed" }, "firefox@libraryextension.com": { "installation_mode": "allowed" }, "opentabsnexttocurrent@sblask": { "installation_mode": "allowed" }, "{d04b0b40-3dab-4f0b-97a6-04ec3eddbfb0}": { "installation_mode": "allowed" }, "{79091463-df78-4dc0-a258-fb3724141b5c}": { "installation_mode": "allowed" }, "{c5f935cf-9b17-4b85-bed8-9277861b4116}": { "installation_mode": "allowed" }, "firefox@ghostery.com": { "installation_mode": "allowed" }, "{32af1358-428a-446d-873e-5f8eb5f2a72e}": { "installation_mode": "allowed" }, "{e4a12b8a-ab12-449a-b70e-4f54ccaf235e}": { "installation_mode": "allowed" }, "multipletab@piro.sakura.ne.jp": { "installation_mode": "allowed" }, "targetvechelper@adobe.com": { "installation_mode": "allowed" }, "extension@requestly.in": { "installation_mode": "allowed" }, "87677a2c52b84ad3a151a4a72f5bd3c4@jetpack": { "installation_mode": "allowed" }, "{d7742d87-e61d-4b78-b8a1-b469842139fa}": { "installation_mode": "allowed" }, "@contain-facebook": { "installation_mode": "allowed" }, "{446900e4-71c2-419f-a6a7-df9c091e268b}": { "installation_mode": "allowed" }, "{fc2b8f80-d9a5-4f51-8076-7c7ce3c67ee3}": { "installation_mode": "allowed" }, "languagetool-webextension@languagetool.org": { "installation_mode": "allowed" }, "keefox@chris.tomlinson": { "installation_mode": "allowed" }, "support@lastpass.com": { "installation_mode": "allowed" }, "{16a49f65-1369-4839-a5ef-db2581e08b16}": { "installation_mode": "allowed" }, "progress_teststudio_extension@telerik.com": { "installation_mode": "allowed" }, "{e4a8a97b-f2ed-450b-b12d-ee082ba24781}": { "installation_mode": "allowed" }, "{3c078156-979c-498b-8990-85f7987dd929}": { "installation_mode": "allowed" }, "{9d4683ff-8d9c-40ad-adb4-9fa895a3a0d7}": { "installation_mode": "allowed" }, "uMatrix@raymondhill.net": { "installation_mode": "allowed" }, "{201338d1-1eb4-4fa9-8a36-f58959ef9d2f}": { "installation_mode": "allowed" }, "{E0B8C461-F8Fb-49B4-8373-FE32E9252800}": { "installation_mode": "allowed" }, "svwe@oracle.com": { "installation_mode": "allowed" }, "Clipper@OneNote.com": { "installation_mode": "allowed" }, "jsonview@brh.numbera.com": { "installation_mode": "allowed" }, "{2d2026b3-3b4f-4c50-83a1-0cabb4d1fdfa}": { "installation_mode": "allowed" }, "de-CH@dictionaries.addons.mozilla.org": { "installation_mode": "allowed" }, "simple-tab-groups@drive4ik": { "installation_mode": "allowed" }, "firefox@tampermonkey.net": { "installation_mode": "allowed" }, "{0d92d791-1db2-4181-a017-f309b99a620c}": { "installation_mode": "allowed" }, "{a6fd85ed-e919-4a43-a5af-8da18bda539f}": { "installation_mode": "allowed" }'/>

Answer 6 · 2023-01-17 21:29:28

Mike Kaply

Moderator

1/27/23 00:47

You need to remove this line: ``

      "install_sources": ["about:addons","https://addons.mozilla.org/*"],

```

Answer 7 · 2023-01-17 21:29:28

victoria.gray Umnini wombuzo

1/29/23 20:52

Isisombululo esiKhethiweyo

Hello, was actually just missing an additional closing bracket.

Answer 8 · 2023-01-17 21:29:28

daniel.david.white

2/27/23 01:57

I am having a similar issue but in my case it has never worked since I am onboarding the browser at this time. Can someone take a look at my post? https://support.mozilla.org/en-US/questions/1403897

Answer 9 · 2023-01-17 21:29:28

cor-el

Moderator
Top 10 Contributor

2/27/23 02:14

Hi daniel.david.white

I've moved your question to this Firefox for Enterprise forum, so please continue there.

Ilungisiwe Februwari 27, 2023 02:15:20 -0800 ngu cor-el

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