SingleFile is an extension that helps you to archive a complete page into a single HTML file or HTM-File with Google Chrome and Chromium. In version 0.0.76 it is not possible to save only a selection without advertising text at the edges of a site, as you can with unMHT. But the author gildas promised to implement this feature in one of the next versions. Saved files are compatible with Firefox, Opera, Safari, Konqueror and partially with Internet Explorer 8, if you uncheck the option "remove unused CSS rules".