Test Case for Mutation Breakpoints

Jan Odvarko, odvarko@gmail.com

This test is intended to verify Mutation Breakpoints support within the HTML panel. This features allows to debug following mutation events:

  1. Open Firebug enable the Script panel and select the HTML panel.
  2. Click Break On Mutate button in the toolbar. ()
  3. Click the buttons below step by step.
  4. The debugger must stop JS execution and show the source code line that caused the change in the DOM.


The test should pass two ways:

  1. Make sure extensions.firebug.filterSystemURLs preference is set to true. If not, set it and reload the page.
  2. Make sure extensions.firebug.filterSystemURLs preference is set to false. If not, set it and reload the page.