Tech Tip: How to Debug Firefox’s UI Code Using the Debugging Tools
In order to debug Mozilla Firefox’s User Interface code (so-called “chrome” code), you should toggle the “Enable chrome and add-on debugging” checkbox in the Developer Toolbar’s setting and then go to “Tools → Web Developer → Browser Toolbox”. Thanks to jdm on irc.mozilla.org for part of this tip. Cheers and happy United Stated Independence Day (4th of July) in case you are an American.
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