[knowitnone]

"we encourage developers to link to self-hosted privacy policies"

So now, extensions can change to anything they want at any time they want with our without consent?

[somat]

Why do they need to change anything?

As far as I know a privacy policy has zero legal weight, that is, a company can put anything it wants into the privacy policy, it has no effect on what is actually done.

[bartvk]

Yes and this actually is the same when you publish an app in the App Store.

[Sporktacular]

Maybe I'm misunderstanding, but under the previous process, submitting a policy with an update freezes it to a specific version. That holds the developer to account at least for that update.

[arp242]

In the end a privacy policy is little more than the proverbial "ink on a piece of paper". It's doesn't actually prevent anything. Where and how it's published seems like a minor detail.