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

Manage Extensions

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

I am trying to manage Firefox extensions using a GPO using code below (Computer Configuration->Administrative Templates->Mozilla->Firefox->Extensions->Extension Management). The format below aligns with what is listed here "https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings" and this is not working as expected. The goal is to only allow users to install the allowed extensions listed and everything else gets blocked. Please help?

Not sure if related but I also have "Extension Update" enabled

{
  "*": {
    "blocked_install_message": "Your admin has blocked adding this extension.",
    "install_sources": ["about:addons","https://addons.mozilla.org/"],
    "installation_mode": "blocked",
    "allowed_types": ["extension"]			
	},
    "abb@amazon.com": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
		}
	},
    "ciscowebexstart1@cisco.com": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/cisco-webex-extension/latest.xpi"
		}
	},
    "{bda65ea0-2465-43b6-9b66-d396988c24aa}": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/google-hangout/latest.xpi"
		}
	},
		"linkedinConverted@firefox-extension": {
        "installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/linkedin-notifications/latest.xpi"
      }
	},
    "{7bc53591-5218-45a0-b572-4366979097fd}": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/markdown-diagrams/latest.xpi"
      }
	},
    "queryamoid@kaply.com": {
		"installation_mode": "allowed",
		"install_url": "https://raw.githubusercontent.com/mkaply/queryamoid/main/updates.json"
      }
	},
    "jid1-93WyvpgvxzGATw@jetpack": {
        "installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/to-google-translate/latest.xpi"
      }
}
I am trying to manage Firefox extensions using a GPO using code below (Computer Configuration->Administrative Templates->Mozilla->Firefox->Extensions->Extension Management). The format below aligns with what is listed here "https://github.com/mozilla/policy-templates/blob/master/README.md#extensionsettings" and this is not working as expected. The goal is to only allow users to install the allowed extensions listed and everything else gets blocked. Please help? Not sure if related but I also have "Extension Update" enabled <pre><nowiki>{ "*": { "blocked_install_message": "Your admin has blocked adding this extension.", "install_sources": ["about:addons","https://addons.mozilla.org/"], "installation_mode": "blocked", "allowed_types": ["extension"] }, "abb@amazon.com": { "installation_mode": "allowed", "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi" } }, "ciscowebexstart1@cisco.com": { "installation_mode": "allowed", "install_url": "https://addons.mozilla.org/firefox/downloads/latest/cisco-webex-extension/latest.xpi" } }, "{bda65ea0-2465-43b6-9b66-d396988c24aa}": { "installation_mode": "allowed", "install_url": "https://addons.mozilla.org/firefox/downloads/latest/google-hangout/latest.xpi" } }, "linkedinConverted@firefox-extension": { "installation_mode": "allowed", "install_url": "https://addons.mozilla.org/firefox/downloads/latest/linkedin-notifications/latest.xpi" } }, "{7bc53591-5218-45a0-b572-4366979097fd}": { "installation_mode": "allowed", "install_url": "https://addons.mozilla.org/firefox/downloads/latest/markdown-diagrams/latest.xpi" } }, "queryamoid@kaply.com": { "installation_mode": "allowed", "install_url": "https://raw.githubusercontent.com/mkaply/queryamoid/main/updates.json" } }, "jid1-93WyvpgvxzGATw@jetpack": { "installation_mode": "allowed", "install_url": "https://addons.mozilla.org/firefox/downloads/latest/to-google-translate/latest.xpi" } }</nowiki></pre>

Modified by cor-el

Chosen solution

Your code has a a lot of extra lines with a closing '}'. You can try this code instead.

Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =
{
 "*": {
    "blocked_install_message": "Your admin has blocked adding this extension.",
    "install_sources": ["about:addons","https://addons.mozilla.org/"],
    "installation_mode": "blocked",
    "allowed_types": ["extension"]			
	},
  "abb@amazon.com": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
	},
  "ciscowebexstart1@cisco.com": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/cisco-webex-extension/latest.xpi"
	},
  "{bda65ea0-2465-43b6-9b66-d396988c24aa}": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/google-hangout/latest.xpi"
	},
	"linkedinConverted@firefox-extension": {
        "installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/linkedin-notifications/latest.xpi"
	},
  "{7bc53591-5218-45a0-b572-4366979097fd}": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/markdown-diagrams/latest.xpi"
	},
  "queryamoid@kaply.com": {
		"installation_mode": "allowed",
		"install_url": "https://raw.githubusercontent.com/mkaply/queryamoid/main/updates.json"
	},
  "jid1-93WyvpgvxzGATw@jetpack": {
        "installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/to-google-translate/latest.xpi"
 }
}

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

Your code has a a lot of extra lines with a closing '}'. You can try this code instead.

Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =
{
 "*": {
    "blocked_install_message": "Your admin has blocked adding this extension.",
    "install_sources": ["about:addons","https://addons.mozilla.org/"],
    "installation_mode": "blocked",
    "allowed_types": ["extension"]			
	},
  "abb@amazon.com": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
	},
  "ciscowebexstart1@cisco.com": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/cisco-webex-extension/latest.xpi"
	},
  "{bda65ea0-2465-43b6-9b66-d396988c24aa}": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/google-hangout/latest.xpi"
	},
	"linkedinConverted@firefox-extension": {
        "installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/linkedin-notifications/latest.xpi"
	},
  "{7bc53591-5218-45a0-b572-4366979097fd}": {
		"installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/markdown-diagrams/latest.xpi"
	},
  "queryamoid@kaply.com": {
		"installation_mode": "allowed",
		"install_url": "https://raw.githubusercontent.com/mkaply/queryamoid/main/updates.json"
	},
  "jid1-93WyvpgvxzGATw@jetpack": {
        "installation_mode": "allowed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/to-google-translate/latest.xpi"
 }
}

more options

Moving thread to Firefox for Enterprise.