The goal of this thesis was the design of prototypes for a new kind of web browser, designed for one specific scenario. This is a departure from the goal of today‘s browsers that are designed to fit all kinds of purposes. The risk of excluding certain groups of users with this narrow focus was deliberately accepted. Similar to the use of separate applications for listening to music and for editing a document, in the future separate browsers may be used in different contexts of use. While these browsers all access the same data source –the world wide web– they offer custom fitted tools and therefore a completely different experience to the users. As a basis for the different browser concepts, the scenarios „Entertainment“, „Local Browsing“ and „Research“ were defined and verified with a user survey with 23 participants. The result of this analysis is a catalog of requirements, that is joined by interaction metaphors taken from the real world to build the foundation of the browsers that will be developed. After realizing the conceps as paper prototypes, one was chosen to be implemented first as a mockup, and then as an interactive prototype. This prototype was developed using web technologies such as HTML5, CSS3 and Javascript. In addition to this, existing APIs and web services were used, so the result can be considered a mashup.