Is this article a bit outdated? I have noticed some projects not only switched their repositories but also programming languages i.e.:

> If you know Python, you can contribute to our web services, including Firefox Sync, or Firefox Accounts

Not quite recently (about 6-7 months ago), the syncserver got rewritten to Rust [0], while the Python codebase it's a bit stalled [1]. I guess Mozilla is going to switch to syncserver-rs soon, because they started implementation of Google Cloud Spanner and this looks like a green-light for future deployment.

> If you know Java, you can contribute to Firefox on Android, Firefox Focus for Android and Firefox for Fire TV.

There is new Firefox Preview on Android, which might disrupt the mobile browser market share soon (if it gets addons support). Some mozillian also worked on projects like Lockwise [2] or Firefox Notes [3] which are written in Kotlin, not Java.

Please, do update this article.

[0]: https://github.com/mozilla-services/syncstorage-rs/commits/m...

[1]: https://github.com/mozilla-services/syncserver/commits/maste...

[2]: https://lockwise.firefox.com/

[3]: https://addons.mozilla.org/en-US/firefox/addon/notes-by-fire...