Firefox debugger breakpoint not working

Question

When I click on a line to set a break point, the break point line gets highlighted, then the break point highlight disappears.

Other than that, Firefox developer de

Answer 1

This might help people in the future without having to modify any js file:

Have you clicked the Deactivate breakpoints button? Pressing this will toggle breakpoints on/off.

If the icon is in blue, it means the breakpoints will be de-activated.

Note: I have noticed that in some sessions the toggle is activated although not blue, a refresh of the page solved this.