BrowserPlus is a technology for web browsers that allows developers to create rich web applications with desktop capabilities.

• Dynamic: The most unique attribute of BrowserPlus is its ability to update and add new services on the fly without a browser restart or even reloading the page! As a user, this means no more installers to run or losing your place on the web. For developers, you can check for and activate new services with a single function call, pending user approval – we handle the complexity of software distribution and updates for you.
• Secure: Anytime new software comes from to you from the web, you should be paranoid. We are. All BrowserPlus updates are signed and verified by Yahoo! so you can trust their authenticity. Updates are never applied without your approval. If a security issue is found in a service we can quickly deactivate it so it can’t be exploited by malicious sites. Also, seamless updates mean quick and easy fixes for everyone. We respect the web security precedent set by browser developers. We never let sites have access to your data or resources unless you approve it.
• Playful: Because we’ve made BrowserPlus modular, easy to extend, and painless to update, it means we can experiment with new ideas swiftly and target only those who are interested. Want to make native IRC connections or talk to a Wii Remote from JavaScript? Just require the appropriate service! Being playful means that some of the APIs we publish may not be useful to a large audience, but they will be fun. And, in the end, isn’t that what the web is all about?