Is here any setting how to limit maximum memory used per page and after that stops the page loading or spawn a windows with a guestion?

I'm asking because nowadays when using a google here are more and more links leading to blogs constructed like an infinitive poster. Few more of them and I'm not even able to switch to that page and stop its loading (if I will found it between tens of other)

I looked, but I could not find any memory per page item in configuration. You can stop the loading with the button on the toolbar. I use the Klassic skin any my button is a red circle with an "x" in it. The button is gray when no page is loading, and it is the third button from the left.

I don't know any preference to limit maximum memory used per page.
But it's possible that you can config to stop load if page not finished load in a defined time with a macro and a little of JavaScript code.

K-Meleon in Spanish