Mozilla launching “Thundermail” email service to take on Gmail, Microsoft 365
Published on: 2025-05-17 00:01:01
Mozilla takes on Gmail, Microsoft 365 with range of new features
Thunderbird Pro includes Appointment, Send and Thundermail
A new AI writing tool is also coming with local processing
Mozilla is turning its Thunderbird open source email client into a full communications platform with the launch of Thundermail and Thunderbird Pro.
The expansion of Mozilla's email services aims to compete with rival ecosystems like Gmail and Microsoft 365, which are more rich in features, except Mozilla’s offering stands out for its open source values of privacy, freedom, transparency and user respect.
“Thunderbird loses users each day to rich ecosystems that are both clients and services,” Ryan Sipes, Managing Director for Product Thunderbird confirmed as he expressed the ‘why’ behind Thunderbird’s expansion.
Thunderbird is about to get an overhaul
The Thunderbird database says its number of active monthly installs has dropped from 17.7 million in late December 2020 to 16.2 million in late March 2
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