Auto-installation of add-ons to existing profile

We are struggling to get our add-on to automatically load.

We have recently had to go through the process of signing our add-on to adhere to the new requirement.

In order to do this, we had to rebuild it in jpm. The old version loaded automatically when added to the user’s profile extension folder. The new version doesn’t, though it loads fine using the “Load from file” option.

What do I have to do to fix the problem?

In addition, how can I log the extension loading process?

You can set the preference extensions.logging.enabled to true in about:config.