* [https://github.com/djg/audioipc-2 https://github.com/djg/audioipc-2]: Audio IPC for Gecko.
* [https://github.com/hsivonen/encoding_rs https://github.com/hsivonen/encoding_rs]: encoding_rs (character encoding converters for Gecko)
* [https://github.com/choller/firefox-asan-reporter https://github.com/choller/firefox-asan-reporter] : Internal addon used in conjunction with special ASan builds of Firefox.
* [https://github.com/jrmuizel/qcms https://github.com/jrmuizel/qcms] : Fork of 'quick color management' for Firefox