Life & fun · February 17, 2022
Curl modified to impersonate Firefox and mimic its TLS handshake
curl-impersonate: A special build of curl that can impersonate Chrome & Firefox - lwthiker/curl-impersonate
Curl modified to impersonate Firefox and mimic its TLS handshake launched on February 17, 2022 with 249 votes, #90 of 2,645 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 4 years on.
In plain words
Curl modified to impersonate Firefox and mimic its TLS handshake is a technical tool that alters the Curl command-line utility to present itself as Firefox during network connections. It replicates Firefox's TLS handshake behavior, making requests appear as if they originate from the Firefox browser. The tool is designed for developers and system administrators who need to test server compatibility or bypass restrictions based on browser identification.
written from the facts on this page · September 2026
Does a similar job
all alternatives →
Firefox Relay2021 · relay.firefox.com · ▲252Hide your real email address to help protect your identity.
Use cookies from Chrome (CDP) in cURL without copy pasting2023 · github.com · ▲184Use cURL with cookies from Chrome. Contribute to fipso/ccurl.sh development by creating an account on GitHub.
curl-impersonate-phpNov 2025 · packagist.org · ▲6Libraries in PHP with features such as browser behavior
I built an HTTP client that perfectly mimics Chrome 142Nov 2025 · github.com · ▲39BoringSSL and nghttp2. Matches JA3N, JA4, and JA4_R fingerprints. Supports HTTP/2, async/await, and works with Cloudflare-protected sites. Not trying to compete with curl_cffi - just a learning project that turned into something functional.
Firefox in WebAssemblyJul 2026 · developer.puter.com · ▲273This is the entire Firefox browser rendering to a element. Gecko, all UI components, and the Spidermonkey JS engine are all compiled and running in WebAssembly. Here are a few things you might find interesting: - This is fully end to end encrypted! We use the WISP protocol for TCP-over-websockets. - There is a novel WASM->JS JIT for experimental site speedup - This port cost over 25k in opus/fable tokens for debugging and JIT research This was just a fun experiment to push the boundaries of WebAssembly. For a more usable "browser in browser" experience, we also built…
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