Other comment about initiators is probably more useful for your use-case but there are also "Event Listener Breakpoints" in the sources tab in chrome dev tools.

Other comment about initiators is probably more useful for your use-case but there are also "Event Listener Breakpoints" in the sources tab in chrome dev tools. You can use mouse->click to figure out what most buttons are doing (you may have to step through a couple onclick handlers to get to the one you want).