Service workers

Hello, I recently switched to using vanilla FF from a fork, and I started getting a bunch of DNS queries to push.services.mozilla.com that I never got on the fork, even though notification permissions have always been blocked. I was befuddled, until I realized I had an ass-ton of service workers. Are these not a privacy risk? The old browser had them disabled by default, and I guess I assumed without really thinking about it that the custom user.js would too.

[fxbrit]

for reference https://support.mozilla.org/en-US/kb/push-notifications-firefox

a few highlights:

Push messages are encrypted per the IETF spec, and only your copy of Firefox can decipher them. The encrypted messages are stored on the server until they are delivered or expired.

Firefox maintains an active connection to a push service in order to receive push messages as long as it is open. The connection ends when Firefox is closed. We store a randomized identifier (User Agent IDentifier or UAID) on our server for your browser, along with a random client-generated identifier for each push subscription.

If you don’t have any active push notification subscriptions, Firefox rotates the UAID on each new connection.

We store your IP address for 90 days as part of this service. The stored information is invalidated when either the IP Address or UAID is changed

very good implementation imo.

[Thorin-Oakenpants]

Assuming it’s an intentional slight and getting angry at people over minutiae is no way to live life

I’m not angry at all, I’m just being REALLY HARD on making people read the wiki and user.js before asking for help