Bulldock Browser is described as 'Convert any website into an app for your dock'. There are three alternatives to Bulldock Browser for Mac, Windows and Linux. The best alternative is WebCatalog, which is both free and Open Source. Other great apps like Bulldock Browser are Fluid (Freemium) and Web2Desk (Free).
WebCatalog lets you turn any web apps into desktop apps (a.k.a. site-specific browsers) with many additional features to enhance your workflows. It also protects you from cross-website trackers and preserving your privacy.
Are you a Gmail, Facebook, Basecamp or Pandora fanatic? Do you have 20 or more browser tabs open at all times? Are you tired of some random site or ad crashing your browser and causing you to lose data in other tabs?