Thunderbird's localizers make it possible for users around the world our desktop and mobile clients in their own language. This month, Heather and Monica are chatting with Bogomil Shopov, one of our Bulgarian localizers who has been with Thunderbird from the start. Find out how he got started in open source, how he's mentoring the next generation of contributors, and his advice on getting involved with Thunderbird (and what music he uses to focus!)

Resources and Links:

Desktop Thunderbird Translation docs: https://source-docs.thunderbird.net/en/latest/l10n/index.html

Desktop Thunderbird Translation on Pontoon: https://pontoon.mozilla.org/projects/thunderbird/

Thunderbird for Android Translation docs: https://docs.weblate.org/en/latest/user/translating.html

Thunderbird for Android Translation on Weblate: https://hosted.weblate.org/projects/tb-android/

Bogomil's talk on translating Thunderbird at FOSDEM '26: fosdem.org/2026/schedule/event/93VVPX-what_translating_thunderbird_taught_me/