Hi,
What we're looking for is a way to publish our addon-on to a limited group, for testing. It is somewhat inconvenient for each beta tester to use "developer mode" and "Load Unpacked Extension" for each release.
Chrome allows us to test a "nightly version" of our product as it is only "Published to Testers"; A form of private, available only to a list of "trusted users" which is managed from the Chrome store developer dashboard.
Many thanks in lieu of your reply.
Rgs.
Philip