I attended her talk on "Containerizing Your Desktop" at LinuxCon NA 2015, and she maintains this open source repository filled with awesome Dockerfiles that can run anything from Spotify to Chrome. Truly amazing https://github.com/jessfraz/dockerfiles
What is the point of running Chrome in a Docker container? Is it useful only for developers which want to test stuff using a fixed version of the browser, or is it something that everybody surfing the web should really want to do? (I am not a web developer, so this is a sincere question. I am genuinely curious!)
Note that in terms of isolation, I would be hesitant to consider this (dockerizing apps) a particularly strong solution in terms of security now, but isolation is not only about security, but also about e.g. preventing applications from crapping files all over your system (and being able to know where they've put files - e.g. "docker diff" is quite nice), and having convenient ways of restricting their resource usage etc.
For me at least, when I dockerize apps it tends to be about those concerns, as well as being able to run multiple versions of apps conveniently etc. or to be able to package up a whole toolchain and lock it at combinations of tools I know work well together.