Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Extensions policy allowed not working (Intune ADMX)

  • 5 replies
  • 0 have this problem
  • 1 view
  • Last reply by Mike Kaply

more options

Hi!

Using Intune, we are setting some settings in Firefox. One that is a bit troublesome is the ExtensionSettings

Currently looks like this:

{

 "*": {
   "blocked_install_message": "Blocked.",
   "installation_mode": "blocked"
 },
 "uBlock0@raymondhill.net": {
   "installation_mode": "allowed"
 },
 "addon@darkreader.org": {
   "installation_mode": "allowed"
 },
 "@react-devtools": {
   "installation_mode": "allowed"
 }

}

I get the Blocked message if I try any of the allowed extentions like uBlock, Dark Reader or React Dev Tools.

I can add that uBlock had "force_installed" (With URL since that is required for force) and that worked fine.

Hi! Using Intune, we are setting some settings in Firefox. One that is a bit troublesome is the ExtensionSettings Currently looks like this: { "*": { "blocked_install_message": "Blocked.", "installation_mode": "blocked" }, "uBlock0@raymondhill.net": { "installation_mode": "allowed" }, "addon@darkreader.org": { "installation_mode": "allowed" }, "@react-devtools": { "installation_mode": "allowed" } } I get the Blocked message if I try any of the allowed extentions like uBlock, Dark Reader or React Dev Tools. I can add that uBlock had "force_installed" (With URL since that is required for force) and that worked fine.

Chosen solution

Mike Kaply said

What do you see for ExtensionSettings in about:policies? I've found Intune can be finicky about updating the client.

This is a copy-paste from about:policies:

{"*":{"blocked_install_message":"Blocked.","install_sources":["https://addons.mozilla.org/"],"installation_mode":"blocked","allowed_types":["extension"]},"uBlock0@raymondhill.net":{"installation_mode":"allowed"},"addon@darkreader.org":{"installation_mode":"allowed"},"@react-devtools":{"installation_mode":"allowed"}}

You can see all settings here: https://pastebin.com/0JAhNQe7

Edit: Solved, had to remove the preference: extensions.blocklist.enabled:1

Read this answer in context 👍 0

All Replies (5)

more options

I just tried with your ExtensionSettings and it's working for me (those allowed, others blocked).

What do you see for ExtensionSettings in about:policies? I've found Intune can be finicky about updating the client.

more options

Mike Kaply said

What do you see for ExtensionSettings in about:policies? I've found Intune can be finicky about updating the client.

This is a copy-paste from about:policies:

{"*":{"blocked_install_message":"Blocked.","install_sources":["https://addons.mozilla.org/"],"installation_mode":"blocked","allowed_types":["extension"]},"uBlock0@raymondhill.net":{"installation_mode":"allowed"},"addon@darkreader.org":{"installation_mode":"allowed"},"@react-devtools":{"installation_mode":"allowed"}}

You can see all settings here: https://pastebin.com/0JAhNQe7

Edit: Solved, had to remove this property: extensions.blocklist.enabled:1

Modified by janfredrik

more options

Mike Kaply said

What do you see for ExtensionSettings in about:policies? I've found Intune can be finicky about updating the client.

This is a copy-paste from about:policies:

{"*":{"blocked_install_message":"Blocked.","install_sources":["https://addons.mozilla.org/"],"installation_mode":"blocked","allowed_types":["extension"]},"uBlock0@raymondhill.net":{"installation_mode":"allowed"},"addon@darkreader.org":{"installation_mode":"allowed"},"@react-devtools":{"installation_mode":"allowed"}}

You can see all settings here: https://pastebin.com/0JAhNQe7

Edit: Solved, had to remove the preference: extensions.blocklist.enabled:1

Modified by janfredrik

more options

Chosen Solution

Mike Kaply said

What do you see for ExtensionSettings in about:policies? I've found Intune can be finicky about updating the client.

This is a copy-paste from about:policies:

{"*":{"blocked_install_message":"Blocked.","install_sources":["https://addons.mozilla.org/"],"installation_mode":"blocked","allowed_types":["extension"]},"uBlock0@raymondhill.net":{"installation_mode":"allowed"},"addon@darkreader.org":{"installation_mode":"allowed"},"@react-devtools":{"installation_mode":"allowed"}}

You can see all settings here: https://pastebin.com/0JAhNQe7

Edit: Solved, had to remove the preference: extensions.blocklist.enabled:1