I ran screencast with Chrome devtools on how to debug the console code - when there's an exception. Currently Chrome can't break on exceptions.
I tried the same workflow in Firefox. Impressively, you can break on exception in the console. It doesn't jump to the error (as I might expect), but the workflow does work.
On this page of the site you can watch the video online Firefox devtools workflow: debugging console code with a duration of hours minute second in good quality, which was uploaded by the user Remy Sharp 05 October 2014, share the link with friends and acquaintances, this video has already been watched 2,517 times on youtube and it was liked by 14 viewers. Enjoy your viewing!