There aren't many serious alternatives to Thunderbird. I think that the project falls squarely within Mozilla's mission statement: https://www.mozilla.org/en-US

There aren't many serious alternatives to Thunderbird. I think that the project falls squarely within Mozilla's mission statement: https://www.mozilla.org/en-US/about/manifesto/details/ https://www.mozilla.org/en-US/about/manifesto/details/ Most of their reasoning about this decision revolves around it being a distraction from Firefox. Maybe they should update the manifesto to put web browsing as goal #1. As it stands, it talks about the Internet, but the WWW is clearly their priority.