=================
Open the debugger
=================

There are three ways to open the debugger:

- Select "Debugger" from the Web Developer submenu in the Firefox Menu (or Tools menu if you display the menu bar or are on Mac OSX)

- Press :kbd:`Ctrl` + :kbd:`Shift` + :kbd:`Z` on Windows and Linux, or :kbd:`Cmd` + :kbd:`Opt` + :kbd:`Z` on macOS (starting in Firefox 71; prior to Firefox 66, the letter in this shortcut was :kbd:`S`).

- Press the menu button |image1|, select "Developer", then "Debugger".

.. |image1| image:: hamburger.png
  :width: 20

.. raw:: html

  <iframe width="560" height="315" src="https://www.youtube.com/embed/yI5SlVQiZtI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
  <br/>
  <br/>