On the Mozilla Dev-Platform Newsgroup, hosted at Google Groups, a proposal to deprecate insecure HTTP is being discussed. The idea is that HTTPS needs to be adopted and organizations will not do it without being pushed. The plan is to get browser vendors to refuse activating new features, and eventually disable old features, unless the site is loaded as a “privileged context”.
This has sparked a debate, which was the whole point of course, about how secure do we want the Web to be. What features should we retroactively disable unless it is done through HTTPS? Things that access your webcam and microphone? Things that write to your hard drive? Then there is the question of how to handle self-signed certificates to get encryption without verification, and so forth.
Note: Websites cannot access or create files on your hard drive, but standards like localStorage and IndexedDB allow websites to have their own spaces for persistence. This is to allow, for instance, a 3D game to cache textures (and so forth) so you don't need to download them every time.
Personally, this concerns me greatly. I started helping Mozilla a couple of years ago, a few weeks after I saw Microsoft's Windows 8 developer certification program. I do not like the thought of someone being able to stifle creation and expression, and the web was looking like it might be the last bastion of unrestricted development for the general public.
In the original Windows Store requirements, no browser could exist unless it was a skin of Trident. This meant that, if a site didn't work in Internet Explorer, it didn't exist. If you didn't want to play by their rules? Your app didn't get signed and your developer certificate could even be revoked by Microsoft, or someone with authority over them. You could imagine the problems a LGBT-focused developer might have in certain countries, even if Microsoft likes their creations.
This is obviously not as bad as that. In the Windows Store case, there was one authority whereas HTTPS can be authenticated by numerous providers. Also, if self-signed certificates are deemed “secure enough”, it would likely avoid the problem. You would not need to ask one of a list of authorities permission to exist; you could secure the connection yourself. Of course, that is a barrier of skill for many, and that is its own concern.
So we'll see, but I hope that Mozilla will take these concerns as a top priority in their decisions.