Remove all breakpoints from chrome
You can activate/deactivate breakpoints with ctrl-F8 (Chrome version 49) There is a:
"deactivate / activate"
crossed over black arrow / blue arrow
above the watch pane, There is a list of breakpoints below
Watch, Call stack, Scope where you can activate/deactivate breakpoints individually
Right click in this list, and you can remove all breakpoints.
It sounds like you've told Chrome to break on all exceptions. On the sources tab, at the bottom left, there are a series of buttons:
The one I've circled (a filled hexagon with two vertical lines in it) cycles between breaking on all exceptions, on just uncaught exceptions, and not breaking at all. Click it until it's black (not blue or purple).
For other breakpoints, they're on the right-hand side under the category "Breakpoints" (you probably knew that :-) ). Right-click and choose "Remove all breakpoints".
You can right-click on any breakpoints in the Source tab and click on Remove breakpoint or right-click on the right side on Breakpoints section and Remove all breakpoints!