GPO deploy specific extension and block disable it but still possible to disable it

Hello, I'am testing a GPO to deploy the Lockself extension on windows 11 for Firefox 152, the JSON used in the GPO setting is the following : {"{ca613ee6-4211-4ae2-aa3c-d29608461d11}":{"installation_mode":"force_installed","install_url":"https://addons.mozilla.org/firefox/downloads/latest/lockself-password-manager/latest.xpi","updates_disabled":false}} And i have enabled an another setting to prevent the extension to be disabled or uninstalled by specifing the ID of the extension : ca613ee6-4211-4ae2-aa3c-d29608461d11 The policies are visibles under about:policies and they don't show any error. The issue is that i'am still able to disable Lockself but going in Firefox parameters then under password and autofill. On the image attached, the button "Desactivate the extension" is here and you can use it, it disable the extension. Regards