Filerefox 2023 still a garbage browser

I open one tab and firefox had 20 process running causing CPU usage 47/2 %, memory used 1,399.9 MB power use very high/

I want to know who are the coder for this browser, I think they also coded Thunderbird Mail, another junk in the same bag.

How many add-ons do you have installed?

You can be much good than this.
Try refreshing your Firefox.