If you already read HN, why would you need an update reminder? Using HN I was able to find out about a new Firefox release sometimes even before "Check updates" feature was able to find one ;)
"To ensure optimal security in your computing experience, make sure to keep checking social media often enough that it not only becomes a productivity hindering distraction, but also a borderline addiction."
Not every patch-level security update makes it to the front page of HN, for one thing