Financial indicators of Thunderbird for 2021. Release Preparation Thunderbird 102

The developers of the mail client Thunderbird published The financial report for 2021. Over the year, the project received donations in the amount of $ 2.8 million (in 2019, $ 1.5 million was raised, in 2020 – $ 2.3 million), which allows you to develop independently.


The project expenses amounted to $ 1.984 million (in 2020 – $ 1.5 million) and almost all (78.1%) were associated with payment of staff. The remaining expenses are associated with the payment of professional services (for example, personnel service), tax management and agreements with Mozilla (for example, payment for access to assembly infrastructure). On the accounts of Mzla Technologies Corporation, which oversees the development of Thunderbird, about $ 3.6 million remains.

by available statistics about 9 million active Users thunderbird per day and 17 million active users per month. (A year ago there were approximately the same indicators). 95% of users use thunderbird on the Windows platform, 4% – MacOS and 1% – Linux.

At present, 20 people are hired to work on the project (15 worked in 2020). Among the changes in the staff:

  • will hire an engineer for technical support of enterprises and writing documentation.
  • The position of manager for working with business and community is divided into two positions: a community manager and a business development manager and business work.
  • Hiring an engineer for quality control (QA).
  • another main developer is employed (it was 2).
  • created the position of director for operations.
  • Hire the designer.
  • hire a marketer.
  • Positions saved:
    • Technical manager.
    • coordinator of the ecosystem of additions.
    • The chief architect of the interface.
    • security engineer.
    • 4 developers and 3 main developers.
    • leader of the infrastructure maintenance group.
    • assembly engineer.
    • engineer for the formation of releases.

The immediate plans are the release of Thunderbird 102, among the most noticeable changes in which stands out :

  • New implementation of the address book with support for vcard.

  • Side SPACES panel with buttons for quick switching between the program modes (email, address book, calendar. Chat, add -ons).

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/Media reports.