I'd love a extension setting to only send tabs that were visible for ~4+ seconds.

I built myself a little extension last year that tracks what information I was looking at, but focused on generating "new info" recaps for the day / week.

I realized that I open / quick view a lot of pages and close them, which is a strong signal that I don't care about that specific page, and it shouldn't be a source of "new insights" that I learnt that day (since I probably don't care about that topic).

I'd love to re-try a simpler version of that project that builds on Hister as a backend actually.