What is the principle of resource consumption by extensions of the Chrome browser and those made on its basis (J. Browser, Opera, etc.)?

Question

Google Chrome

I use several dozen extensions for chrome, most of which are highly specialized, designed to work with a particular site (trello, wordstat, google, aliexpress, etc.). Accordingly, most of the time they only guzzle resources.
I do not feel sorry for the memory - 16 gig is enough for now. And the processor is not enough - it is often heavily loaded. At the same time, 90% of my work is in the browser.
Question.
How does a browser with extensions work?
The browser loaded them into memory once, spent CPU and disk time on loading, and further resource consumption by these extensions no longer depends on the number of open tabs?
Or vice versa, when opening each new tab, all extensions are loaded in a new way, separately for each tab, eating away memory and loading the processor?

Answer 1

You go into chrome, press Shift + Esc and see which tab or extension is loading the processor.
The "principle of resource consumption" of extensions is highly dependent on the developers of the extensions themselves, and it can only be affected in one way, by removing the "crooked" extension. If you want, go to https://developer.chrome.com/extensions/getstarted and read about the life cycle. There is a code that runs when you click on the icon, there is a code that runs when the browser starts, and what the developer does is ridiculous depends only on him.

Answer 2

extension/add-on - add-on strife
one worked out its function and "fell asleep" the
other can constantly monitor something on the page
with 16GB to think about memory?
accordingly, your processor is not 286,
do not open 100,500 tabs each and everything will be fine
, I live on 2GB, it’s not enough, but
the browser is enough, if you don’t cut down on its appetites, be healthy, but this is about memory
and the processor time is not a working / sleeping process should