How Fastly Built the Proxy Infrastructure for Firefox's Built-In VPN
By
Shane Burgess
Summary
Fastly explains the proxy infrastructure behind Firefox's new built-in VPN (shipped in Firefox 149). The article details how the proxy uses IETF-standardized MASQUE protocol over QUIC Encryption, HTTP CONNECT, and other architectural decisions to provide scalable, privacy-preserving IP masking. It focuses on the technical underpinnings rather than the user-facing features, explaining why the architecture matters for web privacy.
Source
bskyHow Fastly Built the Proxy Infrastructure for Firefox's Built-In VPNfastly.comKey quotes
· 3 pulledWe were proud and excited when Mozilla shipped Firefox 149 on March 24th with a free, built-in VPN.
We wanted to share the infrastructure underneath, the proxy network that makes the privacy guarantee actually hold.
We think it's worth explaining how it works, why the architecture matters, and what it means for the future of privacy on the web.
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