I've read that Thunderbird 127 is the last to support Windows 7. But on the Portableapps page it says that Thunderbird 128 runs on Win 7.
Thanks.
New: StressMyPC (Dec 10, 2025), Platform 30.1.3 (Nov 17, 2025)
1,400+ portable packages, 1.2 billion downloads
Happy New Year! Please donate to support us in 2026!
If you're running on Windows 7, you'll need to use Thunderbird Portable 115.x: https://portableapps.com/apps/internet/thunderbird-portable-legacy-115
I updated the System Requirements to properly show Windows 10/11
Sometimes, the impossible can become possible, if you're awesome!