Good work from Mozilla, but it won't help prevent those sites that pop up a HTML modal asking you to subscribe by email AND then a few seconds later pop up another HTML modal asking to send you notifications to keep you up to date AND then sliding in something from the bottom with "relevant" posts AND maybe also slide something else in from the top or sides with some other thing that just ends up blocking the content you're actually interested in reading....

I opened a medium post the other day from my phone that did all this stuff. It was amazing - there was a bar up the top asking me to install the medium app. Then another bar below that asking me to subscribe to the author or something. Then a call-to-action pop-over on the bottom of the screen asking me to join a mailing list or something.

Only about 1/4 of my phone screen was left displaying the content - which wasn't even enough space to see the post's title on my plus sized phone.

I closed the tab, because who has time for that?

I can never tell if websites don't know how many people get turned away by how awful their websites are, or if they know but figure its a good deal. (Maybe medium figures an X% drop in blog engagement is worth it if a few readers join their mailing list).

In the meantime I'd like it if all browsers added an option to automatically block all website notification requests. Firefox does this, and its great.

Fyi, you might like, Firefox + ublock + annoyances list on mobile fix most of this garbage.

What is "annoyances list" ?

EDIT: Oh, right, inside the ublock options.

A filter list targeted at removing annoyances. There's a few around, https://github.com/yourduskquibbles/webannoyances is a popular example.