I wrote some JavaScript and Python tools to search your HN Favorites and export them to CSV or HTML.
The JavaScript runs in your browser like a browser extension. It scrapes the HTML and navigates from page to page.
Setup and usage instructions are in the files.
JavaScript: https://github.com/gabrielsroka/gabrielsroka.github.io/blob/...
Python: https://github.com/gabrielsroka/gabrielsroka.github.io/blob/...
Previous discussion, other tools and more info: https://news.ycombinator.com/item?id=22788236