Here's the official reason in case you don't trust my grim representation of it: https://blog.mozilla.org/addons/2015/04/15/the-case-for-extension-signing/ http

Here's the official reason in case you don't trust my grim representation of it: https://blog.mozilla.org/addons/2015/04/15/the-case-for-extension-signing/ https://blog.mozilla.org/addons/2015/04/15/the-case-for-exte...