Firefox browser extension control on Macos

Hi I am trying to use Intune to manage Firefox extensions on macOS devices which are enrolled into Intune, but am struggling to get the policy to apply and wonder what I am doing wrong. Objective (...

Intune

navs1699

Copper Contributor

Nov 17, 2025

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
 "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <!-- This enables reading policies from macOS preferences -->
  <key>EnterprisePoliciesEnabled</key>
  <true/>

  <!-- All Firefox policies go under this 'Policies' dictionary -->
  <key>Policies</key>
  <dict>
    <key>ExtensionSettings</key>
    <dict>
      <!-- Default: block everything -->
      <key>*</key>
      <dict>
        <key>installation_mode</key>
        <string>blocked</string>
      </dict>

      <!-- Allow Keeper by its Add-on ID -->
      <key>KeeperFFStoreExtension@KeeperSecurityInc</key>
      <dict>
        <key>installation_mode</key>
        <string>allowed</string>
      </dict>
    </dict>
  </dict>
</dict>
</plist>

UC_451435

Copper Contributor

Nov 17, 2025

Is mailto:KeeperFFStoreExtension@KeeperSecurityInc right ID?

navs1699
Copper Contributor
Nov 17, 2025
yep, copied and pasted it from the firefox browser itself.

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Firefox browser extension control on Macos

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