mozilla/gecko-dev
Jun 2025 – Jul 2025
2 Months active
Languages Used
C++IDLJavaJavaScriptKotlin
Technical Skills
Android DevelopmentBrowser DevelopmentBrowser Extension DevelopmentBrowser ExtensionsC++ DevelopmentCSS
Emma Zuehlcke
PROFILE
Emma Zuehlcke
Over a two-month period, contributed privacy-focused features and maintenance improvements to mozilla/gecko-dev, primarily enhancing tracking protection and user control in Firefox. Developed and aligned Bounce Tracking Protection for Fenix with Firefox Desktop, using C++ and JavaScript to strengthen privacy defaults. Improved user experience for embedded content by extending SmartBlock support for Disqus and refining responsive placeholders. Led a cross-component migration for URL classifier allow-list categories, enabling opt-in and opt-out via the preferences UI and ensuring robust migration logic with comprehensive tests. Also performed targeted maintenance by removing obsolete Blogger shims, reducing technical debt and simplifying ongoing extension support.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
12Total
Bugs
1
Commits
12
Features
4
Lines of code
2,166
Activity Months2
Your Network
876 peopleSame Organization
@mozilla.com376
Shared Repositories
500
Work History
July 2025
5 Commits • 1 Features
Jul 1, 2025Monthly summary for 2025-07: Delivered a cross-component migration enabling ETP strict/custom URL classifier allow-list category handling with opt-in/out via the preferences UI. Implemented migration logic across the URL classifier and anti-tracking components, added startup ignorePrefs.json handling, and built comprehensive tests to validate migration across components.
5 Commits • 1 Features
Jul 1, 2025Monthly summary for 2025-07: Delivered a cross-component migration enabling ETP strict/custom URL classifier allow-list category handling with opt-in/out via the preferences UI. Implemented migration logic across the URL classifier and anti-tracking components, added startup ignorePrefs.json handling, and built comprehensive tests to validate migration across components.
July 2025
June 2025
7 Commits • 3 Features
Jun 1, 2025June 2025 — Privacy-preserving feature delivery and maintenance cleanups across mozilla/gecko-dev. Focused on aligning mobile privacy controls with Firefox Desktop, improving UX for embedded content, and reducing technical debt. Delivered new privacy features, UX improvements for embeds, and extended allow-list capabilities to improve site compatibility, while cleaning up obsolete shims. Key outcomes: - BTP in ETP strict mode for Fenix to align with Firefox Desktop and enhance privacy by default. - SmartBlock: Disqus embeds support and responsive placeholders improving UX on small screens. - UrlClassifierExceptionList extended with allow-list categories (baseline and convenience) for finer site compatibility. - Maintenance cleanup: Removed obsolete Blogger shims in webcompat extension to simplify maintenance and reduce surface area for regressions.
June 2025
7 Commits • 3 Features
Jun 1, 2025June 2025 — Privacy-preserving feature delivery and maintenance cleanups across mozilla/gecko-dev. Focused on aligning mobile privacy controls with Firefox Desktop, improving UX for embedded content, and reducing technical debt. Delivered new privacy features, UX improvements for embeds, and extended allow-list capabilities to improve site compatibility, while cleaning up obsolete shims. Key outcomes: - BTP in ETP strict mode for Fenix to align with Firefox Desktop and enhance privacy by default. - SmartBlock: Disqus embeds support and responsive placeholders improving UX on small screens. - UrlClassifierExceptionList extended with allow-list categories (baseline and convenience) for finer site compatibility. - Maintenance cleanup: Removed obsolete Blogger shims in webcompat extension to simplify maintenance and reduce surface area for regressions.
Activity
Loading activity data...
Quality Metrics
Correctness94.2%
Maintainability93.2%
Architecture93.2%
Performance86.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++IDLJavaJavaScriptKotlin
Technical Skills
Android DevelopmentBrowser DevelopmentBrowser Extension DevelopmentBrowser ExtensionsC++ DevelopmentCSSConfiguration ManagementFront-end DevelopmentJavaScriptJavaScript DevelopmentMobile DevelopmentMozilla InternalsPrivacy EngineeringPrivacy FeaturesTesting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline