mozilla/gecko-dev
Jun 2025 – Jun 2025
1 Month active
Languages Used
JavaScript
Technical Skills
Browser DevelopmentCode RefactoringFront-end DevelopmentJavaScriptPerformance OptimizationSoftware Engineering
James Teow
PROFILE
James Teow
Worked on the mozilla/gecko-dev repository to deliver two browser features and address a critical bug, focusing on stability, privacy, and accurate data handling. Simplified the PlacesExpiration heuristic by removing device memory and disk space constraints, ensuring consistent database expiration across configurations. Enhanced telemetry by delaying SERP impression reporting until page load completion and capturing events throughout the page lifecycle, improving analytics for single-page applications. Addressed a cross-origin persistence issue by adding origin validation for persisted search terms, with comprehensive tests to prevent regressions. Utilized JavaScript and front-end development skills, emphasizing performance optimization and robust software engineering practices throughout the process.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
2
Lines of code
458
Activity Months1
Your Network
876 peopleSame Organization
@mozilla.com376
Shared Repositories
500
Work History
June 2025
3 Commits • 2 Features
Jun 1, 2025June 2025 | mozilla/gecko-dev — Focused delivery of stability, accuracy, and privacy in the browser codebase. Delivered two new features and fixed a critical cross-origin persistence bug, with targeted tests to validate behavior and prevent regressions. The work aligns with product priorities around reliable data, consistent user experiences across configurations, and stronger privacy safeguards.
3 Commits • 2 Features
Jun 1, 2025June 2025 | mozilla/gecko-dev — Focused delivery of stability, accuracy, and privacy in the browser codebase. Delivered two new features and fixed a critical cross-origin persistence bug, with targeted tests to validate behavior and prevent regressions. The work aligns with product priorities around reliable data, consistent user experiences across configurations, and stronger privacy safeguards.
June 2025
Activity
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Quality Metrics
Correctness86.6%
Maintainability80.0%
Architecture80.0%
Performance73.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaScript
Technical Skills
Browser DevelopmentCode RefactoringFront-end DevelopmentJavaScriptPerformance OptimizationSoftware EngineeringTelemetry
Repositories Contributed To
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