[yoasif_]

> I've seen nag "notification"-type pop-ups advertising Pocket and other things, that I have to dismiss.

Any chance you have a screenshot of this? I see those kinds of notifications for Safari and Edge (on macOS and Windows), but not Firefox.

[brimble]

Nah, but they're UI tooltip-type mini-windows attached to the relevant UI element (the Pocket button, usually), IIRC, except not requested by user action. If I install FF fresh or sometimes after updates it'll decide it needs to try to sell me Pocket again.

[EDIT] Also, I've not seen what you're talking about with Safari (but I believe you—I probably haven't seen it because I use Safari almost exclusively, on Apple operating systems) but I know exactly what you're talking about with Edge. Ugh. That and the little nags about OneDrive and shit down in the system tray. It's weird, back in the heyday of hating Windows—when I was even a really heavy Linux user, in fact!—I never really hated them, but I kinda do now, mostly over their turning into ad- and spy-ware (hm, there's a pattern here).

[yoasif_]

> Nah, but they're UI tooltip-type mini-windows attached to the relevant UI element (the Pocket button, usually), IIRC, except not requested by user action.

This sounds like a popover (not sure what the Firefox term is), but I have only ever seen it in response to an action.

As others have mentioned, there are definitely pages that are opened by default on browser starts/restarts, along with tab modal dialogs (also on restart). But yeah - I can't recall seeing a popover featuring Pocket that just happened by itself.

For reference: https://en.wikipedia.org/wiki/Popover_(GUI)