qcms is mirrored to https://github.com/FirefoxGraphics/qcms but all development happens via the regular [Firefox contribution process](https://firefox-source-docs.mozilla.org/setup/contributing_code.html). Bug should be filed under the 'Core' product in the 'Graphics: Color Management' component. If this process is too onerous, github PRs and issues can be used but they will still need to be migrated over to the Firefox process before landing.