Firefox in WebAssembly

This article discusses an impressive project where Puter compiled Firefox/Gecko to WebAssembly, allowing a complete browser to run within another browser. The demo shows a blog running in Firefox, which is running in WebAssembly, inside Chrome. The project leveraged Firefox's strong single-process support and used approximately $25,000 worth of Claude Opus and Fable tokens, though actual costs were lower due to a subscription plan. Traffic is routed via a WebSocket protocol (Wisp) through Puter's server to bypass browser network restrictions, supporting end-to-end encryption. The article also mentions a similar project, WebKitWasm, and notes the server scaling required due to Hacker News traffic.