Thread:Pecoes/@comment-4674838-20121012013714/@comment-3508190-20121012075655

No, sorry. Not that I'm aware of. I googled a little - as I'm sure you have as well - but came up empty.

Break on all errors is probably the next best thing.

You could also try to tinker with dom.max_script_run_time

But there's no such thing as Ctrl+C or ESC or somesuch for scripts.