* [DKIM Verifier v6.3.0](https://github.com/lieser/dkim_verifier) – Thunderbird add-on that verifies DKIM signatures per RFC 6376.

* [ThunderAI 4.1.0](https://github.com/micz/ThunderAI) – Thunderbird addon enhancing email management with AI-powered analysis, writing assistance, tagging, and task creation.