Comment by jpl56

It's a good thing to optimize workflows and sometimes it can help others.

I miss the Firefox extension someone wrote a while ago (like ~2012), it was called HnMarkAllRead

1) it marked as read all topics on a page by clicking a button, even the ones I didn't visit yet and

2) it had this option to not display a topic already read on a previous session when displaying the next page

A new Firefox version killed it unfortunately.