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

Allowing the install of themes using policies.json

more options

I am creating a policies.json file to block all Add ons except ones specified specifically.

I have figured out how to do this for normal extensions, but I have run into issues when applying the same principle to themes. What am I doing wrong? Here is my sample code that works to allow the ublock add on, no problem, but it is not working to allow the matte-black-red theme:

{

 "policies": {
   "ExtensionSettings": {
     "*": {
       "blocked_install_message": "Error message to display",
       "install_sources": [
         "https://addons.mozilla.org/"
       ],
       "installation_mode": "blocked"
     },
     "[email protected]": {
       "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi",
       "installation_mode": "allowed"
     },
     "{a7589411-c5f6-41cf-8bdc-f66527d9d930}.xpi": {
       "install_url": "https://addons.mozilla.org/firefox/downloads/latest/matte-black-red/latest.xpi",
       "installation_mode": "allowed"
     }
   }
 }

}

I am creating a policies.json file to block all Add ons except ones specified specifically. I have figured out how to do this for normal extensions, but I have run into issues when applying the same principle to themes. What am I doing wrong? Here is my sample code that works to allow the ublock add on, no problem, but it is not working to allow the matte-black-red theme: { "policies": { "ExtensionSettings": { "*": { "blocked_install_message": "Error message to display", "install_sources": [ "https://addons.mozilla.org/" ], "installation_mode": "blocked" }, "[email protected]": { "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi", "installation_mode": "allowed" }, "{a7589411-c5f6-41cf-8bdc-f66527d9d930}.xpi": { "install_url": "https://addons.mozilla.org/firefox/downloads/latest/matte-black-red/latest.xpi", "installation_mode": "allowed" } } } }

Chosen solution

I notice you have add ed the .xpi file extension to the ID

"{a7589411-c5f6-41cf-8bdc-f66527d9d930}.xpi": {
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/matte-black-red/latest.xpi",
   "installation_mode": "allowed"
}

This should likely be:

"{a7589411-c5f6-41cf-8bdc-f66527d9d930}": {
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/matte-black-red/latest.xpi",
   "installation_mode": "allowed"
}
Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

I notice you have add ed the .xpi file extension to the ID

"{a7589411-c5f6-41cf-8bdc-f66527d9d930}.xpi": {
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/matte-black-red/latest.xpi",
   "installation_mode": "allowed"
}

This should likely be:

"{a7589411-c5f6-41cf-8bdc-f66527d9d930}": {
   "install_url": "https://addons.mozilla.org/firefox/downloads/latest/matte-black-red/latest.xpi",
   "installation_mode": "allowed"
}
more options

Yep! That was it. Removing the .xpi fixed the issue. Thank you!