[arnvidr]

You can still do that of course, with the same file that you would offer your friends through your "web property". A file is still a file.

[oefrha]

I doubt it. According to https://extensionworkshop.com/documentation/publish/submitti... the file has to be validated and signed through their submission form, and, I quote,

> Note, however, that your add-on may still be subject to further review, if it is you’ll receive notification of the outcome of the review later.

So other than hosting, I fail to see how this is different from distributing through the official channel — you still have to pass their review.

Note that I’ve never written a Firefox add-on (I’ve written plenty of Chrome extensions though), so please correct me if I’m wrong.

[ihuman]

That's not what mozilla is changing with this policy change. You've had to either sign or temporarily load an unsigned packed/unpacked extension for a while now.