thunderbird/thunderbird-l10n
Nov 2025 – Jun 2026
7 Months active
Languages Used
FTLJavaScriptHTML
Technical Skills
front end developmentinternationalizationlocalizationsoftware developmentFluentJavaScript
Juraj Cigáň
PROFILE
Juraj Cigáň
Over seven months, contributed to thunderbird/thunderbird-l10n by leading the migration of Thunderbird’s user interface localization to the Fluent framework, focusing on internationalization and maintainability. Worked extensively with JavaScript, HTML, and FTL to refactor legacy properties and DTD files, centralize account setup strings, and enable dynamic pluralization and accessibility improvements across UI components. Delivered new localized strings for features like account creation, calendar, and filter management, while streamlining translation workflows and reducing duplication. The work established a scalable localization infrastructure, improved multilingual user experience, and aligned the project with Mozilla’s localization standards, supporting ongoing UI/UX enhancements for global audiences.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
17Total
Bugs
0
Commits
17
Features
8
Lines of code
364
Activity Months7
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Work History
June 2026
3 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for thunderbird/thunderbird-l10n: Delivered a focused localization migration to Fluent across the UI and account creation flows, including calendar components. Implemented new localized strings for security types and added Slovak translations to calendar UI, improving internationalization coverage. The work consisted of three Fluent migration commits. This migration reduces ongoing maintenance of properties-based strings and enables runtime localization updates. Overall impact includes improved user experience for non-English locales, streamlined future localization work, and stronger alignment with Mozilla localization standards.
3 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for thunderbird/thunderbird-l10n: Delivered a focused localization migration to Fluent across the UI and account creation flows, including calendar components. Implemented new localized strings for security types and added Slovak translations to calendar UI, improving internationalization coverage. The work consisted of three Fluent migration commits. This migration reduces ongoing maintenance of properties-based strings and enables runtime localization updates. Overall impact includes improved user experience for non-English locales, streamlined future localization work, and stronger alignment with Mozilla localization standards.
June 2026
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary: Key focus on FTUE localization consolidation in thunderbird-l10n. Centralized account setup strings in the Account Hub to standardize translation workflow, reduce duplication, and improve user onboarding experience for multilingual users. The work aligns with broader localization strategy and sets up a scalable path for future migrations.
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary: Key focus on FTUE localization consolidation in thunderbird-l10n. Centralized account setup strings in the Account Hub to standardize translation workflow, reduce duplication, and improve user onboarding experience for multilingual users. The work aligns with broader localization strategy and sets up a scalable path for future migrations.
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026: Implemented Fluent design migration for Filter Management UI across FilterListDialog, FilterEditor, and Search Widgets. Delivered new actions (copy/edit/delete/reorder), spam status setting, improved accessibility, and clearer action descriptions. This aligns the UI with Thunderbird Fluent design and localization workflows and reduces future refactor effort. Bug 2012697 item relates to migration work; no separate bug fixes.
2 Commits • 1 Features
Mar 1, 2026March 2026: Implemented Fluent design migration for Filter Management UI across FilterListDialog, FilterEditor, and Search Widgets. Delivered new actions (copy/edit/delete/reorder), spam status setting, improved accessibility, and clearer action descriptions. This aligns the UI with Thunderbird Fluent design and localization workflows and reduces future refactor effort. Bug 2012697 item relates to migration work; no separate bug fixes.
March 2026
February 2026
6 Commits • 2 Features
Feb 1, 2026February 2026 focused on UI consistency and localization improvements for Thunderbird (thunderbird-l10n). Key outcomes include Fluent UI migration for Move To and Copy To menus; comprehensive localization and dynamic labeling across cookies removal, feed import, filter editor, attachments removal, filter list pluralization, and remote content origins; and migration away from PluralForm.sys.mjs in major UI modules (cookies, FilterEditor, compose, msgHdrView, filter dialog). These changes enhance accessibility, reduce localization maintenance, and establish a scalable foundation for multilingual UX.
February 2026
6 Commits • 2 Features
Feb 1, 2026February 2026 focused on UI consistency and localization improvements for Thunderbird (thunderbird-l10n). Key outcomes include Fluent UI migration for Move To and Copy To menus; comprehensive localization and dynamic labeling across cookies removal, feed import, filter editor, attachments removal, filter list pluralization, and remote content origins; and migration away from PluralForm.sys.mjs in major UI modules (cookies, FilterEditor, compose, msgHdrView, filter dialog). These changes enhance accessibility, reduce localization maintenance, and establish a scalable foundation for multilingual UX.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 (thunderbird/thunderbird-l10n): Localized account creation flow initiated by introducing a dedicated strings file and starting the migration of accountCreationModel to Fluent. This enables localization of account creation messages and error texts and sets the foundation for broader i18n adoption across the repo. Part 1 of Bug 2008521 completed with commit 9b7e10a5a250329f23b52c99d848d44157790d3f.
1 Commits • 1 Features
Jan 1, 2026January 2026 (thunderbird/thunderbird-l10n): Localized account creation flow initiated by introducing a dedicated strings file and starting the migration of accountCreationModel to Fluent. This enables localization of account creation messages and error texts and sets the foundation for broader i18n adoption across the repo. Part 1 of Bug 2008521 completed with commit 9b7e10a5a250329f23b52c99d848d44157790d3f.
January 2026
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025: Delivered Fluent-based localization migration in thunderbird/thunderbird-l10n, migrating the Search dialog and Address Book UI to Fluent to enhance internationalization. Implemented localization attributes for search value labels and adopted Fluent translation files to enable broader language support and streamlined translation workflows. Fixed two critical localization bugs as part of the migration: Bug 2001222 - Correctly set l10n attributes for MozSearchValue labels during Fluent migration (part 1); Bug 2000811 - Migrate SearchDialog.dtd and search.properties to Fluent (part 2). The changes reduce localization maintenance costs and establish a scalable i18n foundation for future Thunderbird UI updates.
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025: Delivered Fluent-based localization migration in thunderbird/thunderbird-l10n, migrating the Search dialog and Address Book UI to Fluent to enhance internationalization. Implemented localization attributes for search value labels and adopted Fluent translation files to enable broader language support and streamlined translation workflows. Fixed two critical localization bugs as part of the migration: Bug 2001222 - Correctly set l10n attributes for MozSearchValue labels during Fluent migration (part 1); Bug 2000811 - Migrate SearchDialog.dtd and search.properties to Fluent (part 2). The changes reduce localization maintenance costs and establish a scalable i18n foundation for future Thunderbird UI updates.
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 (2025-11) - Localization and Internationalization Upgrades for Thunderbird L10n. Delivered key UI localization enhancements and Fluent-based migrations to streamline translations, reduce localization fragility, and improve user experience across locales.
2 Commits • 1 Features
Nov 1, 2025November 2025 (2025-11) - Localization and Internationalization Upgrades for Thunderbird L10n. Delivered key UI localization enhancements and Fluent-based migrations to streamline translations, reduce localization fragility, and improve user experience across locales.
November 2025
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage22.4%
Skills & Technologies
Programming Languages
FTLHTMLJavaScript
Technical Skills
FluentFluent DesignJavaScriptLocalizationUI developmentUI/UX DesignUI/UX designfront end developmenti18ninternationalizationlocalizationsoftware developmentuser interface design
Repositories Contributed To
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