Exploring Firefox webpage data with JavaScript or browser extensions

Have you ever wondered if it's possible to retrieve the "Modified" information seen in Firefox when selecting "View page Info" by just using a JavaScript extension?

Answer №1

Visit for a comprehensive list of attributes related to the document object. The value of document.lastModified is the modification date.

Answer №2

When you open the "Page Info" dialog, it simply shows you the value of the document.lastModified property without any mystical tricks involved (evidence link).

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