I noticed that my firefox consumes all the CPU and works very slowly, so I found at about:debugging#workers page that there is a lot of bitcoin workers, see an attached picture, unfortunately I have many tabs and I don't know what page/tab installs/runs them. about:performance says nothing.

Is there a way how I can determine the bad site/page/tab without fully enumerating all of them ? Is there a way to force-disable workers for a page (but keeping regular Java Script still working, I'm totally aware that this may make a web page not working properly or not working completely)