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This page describes the JavaScript Debugger as it appears before Firefox 52.

See what it looks like from Firefox 52 onwards.

To disable a breakpoint, uncheck the check box next to the breakpoint's entry in the Source list pane:

Alternatively, activate the context menu while your mouse pointer is over the breakpoint's entry in the source list pane, and select "Disable breakpoint".

You can also remove a breakpoint just by clicking on the arrow that represents it.

To disable/enable all breakpoints, use the "Toggle all breakpoints" button in the Source list pane:

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Contributors to this page: wbamberg
Last updated by: wbamberg,