Welcome to Thunderbird

Why we need donations

Thunderbird is no longer funded by Mozilla. Fortunately there is an active community keeping it running and developing it further. But to survive long term, the project needs funding.

Thunderbird’s funding goes toward the significant infrastructure and staff that must be maintained to deliver the application to our tens of millions of users. For Thunderbird to survive and continue to evolve, we need your support and ask for your donation today. All the money donated will go directly to funding Thunderbird development and infrastructure.

Donate to Thunderbird

Thunderbird is the leading open source, cross-platform email and calendaring client, free for business and personal use. We want it to stay secure and become even better. A donation will allow us to hire developers, pay for infrastructure, and continue to improve.

Thunderbird is funded by users like you! If you like Thunderbird, please consider making a donation. The best way for you to ensure Thunderbird remains available is to make a donation.

Get Involved

Thunderbird is an open source project, which means anyone can contribute ideas, designs, code, and time helping fellow users. Become part of a team that supports Thunderbird users, and makes Thunderbird awesome. Join us

Get Support

Need help with something in Thunderbird? We have a support page where you can ask questions and read knowledge base articles to learn how to use Thunderbird.

Report a Bug

Think you’ve found a problem with Thunderbird? Create a bug report so that we can make sure it gets solved. Helping us identify and fix bugs makes for a better Thunderbird for all.