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Name		Name	Last commit message	Last commit date
.github/workflows		.github/workflows
bench		bench
demo		demo
gecko.js		gecko.js
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
em_config		em_config
git-pull-keepmtime		git-pull-keepmtime
mozconfig.full.emscripten		mozconfig.full.emscripten
mozconfig.js.emscripten		mozconfig.js.emscripten
package.json		package.json
pnpm-lock.yaml		pnpm-lock.yaml
pnpm-workspace.yaml		pnpm-workspace.yaml
vendor-std-deps.py		vendor-std-deps.py

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Firefox in WebAssembly

This project compiles the Gecko engine to WebAssembly so that Firefox can be loaded inside another browser. This port is made possible by emscripten and the WISP protocol for networking support.

ss-2026年07月15日T16:17:54 137585236-04:00

BUILD INSTRUCTIONS

Must build on linux. Building on mac is not currently supported.

prequisites

libpulse-dev
node + pnpm

emsdk install 6.0.1
emsdk activate 6.0.1
rustup target add wasm32-unknown-emscripten
make web

JIT

This project contains an attempt at a JS->WASM JIT. It is currently not usable on many websites. It can be toggled with the environment variable GECKO_NOWASMJIT=1