historious extension oleh Stavros

The historious extension will allow you to easily bookmark sites on https://historio.us. It gives you a button that you can press on any page to save it on historio.us and easily find it again by searching for any term in its contents.

historious is a free service, and the extension is also provided for free.

This extension only sends the current page URL or source to historious if you click the button, and doesn't send any other data anywhere otherwise.