Design and development of Chrome Extensions and Apps with modern technologies. Over 3 years of concrete experience on the Chrome platform (now extensive to Firefox WebExtensions) has brought familiarity with the hurdles associated with long-lived, real world client-side applications. Memory leaks, performance bottlenecks and other causes of usability nightmares are prevented or addressed through careful design. Should you not have a complete specification for a browser extension, I can work on your mock-up or business idea, suggesting different development approaches and evaluating technical feasibility, as well as implementation or publishing restrictions, before the first line of code is written. Example applications of these extensions include: + Website enhancements + Full applications that exercise a backend or remote API + Automated web-robots (scrapers, downloaders, emulation of human interaction) + Native-like desktop applications using web technologies