My main driver is Firefox, but Google Docs etc. won't work properly in it. I also wouldn't want it to use the same cookies (home vs. multiple work Google accounts, etc.).

`google-chrome --user-data-dir=$XDG_CONFIG_HOME/gdocs/ --app=https://docs.google.com/` launches Chrome with a dedicated profile and in "app" mode (no browser UI, favicon as program icon, etc.), which works well for cases like this. Apparently this tool in particular works slightly differently, but the intent is comparable.