I am using Factotum on both Plan 9 and Linux for years. The lack of a proper integration in modern browsers always bothered me.
I recall it was discussed here in the past, but nothing was done to my knowledge. So far, I used a tool to display the required login and password from Factotum, and copy/past from it. It is far from ideal. So, if you are willing to make a Factotum extension for Chromium, I strongly encourage you to do so. The Factotum API is trivial, much of the work is to figure out how to write a Chromium extension to handle authentication. -- David du Colombier
