Link Download Thunderbird 38.1.0 ✓

For security and reliability, always download legacy versions directly from the Mozilla Release Directory: Thunderbird Setup 38.1.0.exe macOS: Thunderbird 38.1.0.dmg Linux: Thunderbird 38.1.0.tar.bz2 Key Features of Thunderbird 38.1.0

Released in July 2015, version 38.1.0 introduced several major shifts in how the client operated: download thunderbird 38.1.0

The "Lightning" calendar extension was integrated by default for the first time. For security and reliability