* [[Thunderbird:Testing|QA testing]] - How to help with quality assurance and testing.
* [https://developer.mozilla.org/en/Thunderbird_Localization Localization] - Information for translators on how to localize Thunderbird.
[Thunderbird/ Support|Thunderbird Support ]] - Thunderbird users are supported by the community.
* [[Thunderbird/Docs|Thunderbird Documentation]] - Documentation for developers and users.
* [[Thunderbird/Contributing patches|Contributing patches and fixes]] - How to get started contributing patches and fixes.