Thunderbird 140 “Eclipse” Released: Darker, Smoother Email Experience
2025-07-10
Thunderbird 140 “Eclipse”, the latest Extended Support Release (ESR), is here! Building upon version 128 and incorporating recent monthly updates, this release boasts adaptive dark messaging, improved visual controls, and a streamlined Account Hub. Users can easily customize appearance settings, leverage native OS notifications, and enjoy simplified account addition and folder sorting. Additional features include experimental native Exchange support, mobile QR code export, horizontal scrolling in table view, and thousands of bug fixes and performance improvements. Manual upgrades are available now for Windows, Linux, and macOS, with automatic updates rolling out soon.
Read more
Development