This extension is using the HTML5 outline algorithm to create a table of contents.
Should also work well with HTML4 (and older?) pages, that have structured headings.
The table of contents is clickable and tries to highlight the heading/section in question after the jump.
The extension should prove useful to people who find themselves often using online HTML5 outliners.
Comments, bug reports and suggestions much appreciated!
Extension source code: https://github.com/h5o/h5o-chrome
Outliner source code: https://github.com/h5o/h5o-js