A site-specific browser (SSB) is a great way to "package" a web app you use every day into a dockable, clickable app that maintains its own cookies, settings and preferences versus your everyday web browser config. On the Mac, the easiest way to make an SSB is via the handy Fluid app, which supports independent prefs in its paid version.
Chrome's preliminary "packaged app" support, which will take the SSB concept to the next level, has been supported via dev builds on Windows and Linux since the beginning of the month; you ca