How can I stop Chrome from going into debug mode?

If the debugging window is open, the debugger starts hitting lines by itself even though there are no set breakpoints.

I have tried using the “Deactivate breakpoints” button and it doesn’t make a difference if it is on or off.

This happens on any website.

Answer

You’ve accidentally set “Pause on Exceptions” to all/uncaught exceptions.

Go to the “Sources” tab. At the top right hand side, toggle the button that looks like the pause symbol surrounded by a hexagon (button on the far right) until the color of the circle turns black to turn it off.