I bought the paid version of your extension about 1 year ago. Can you please explain why the following permissions are needed for the extension:
I think the last two are not needed, unless read from an app-specific directory (https://developer.android.com/reference/android/Manifest.permission.html#READ_EXTERNAL_STORAGE).
As you probably know,
READ_PHONE_STATE and READ_ / WIRTE_EXTERNAL_STORAGE
are dangerous permissions, so users unfortunately have to grant them since API 23.