ContextLens enhances your browsing experience by offering contextually relevant definitions and explanations for highlighted words or phrases directly within web pages. Unlike traditional dictionary extensions, ContextLens sends the page title to the AI, ensuring that the explanation is tailored to the specific topic you are reading about. For instance, if you highlight 'hierarchy' while studying a feudalism article, ContextLens will provide an explanation relevant to feudal lords rather than a generic definition. The extension requires no setup and does not need an API key; simply install it and start using it right away.