
Moonira contributed to mozilla/gecko-dev by developing security-focused enhancements for CSS style range evaluation and expanding support for container style queries. She implemented robust type checks and taint propagation in conditional logic, addressing vulnerabilities in image-set and background-image calculations. Using CSS, JavaScript, and web platform testing, Moonira introduced range syntax for container queries, enabling numerical and cross-type comparisons across CSS data types and custom properties. She also improved parser reliability by adding comprehensive tests for @custom-media rules, covering both valid and invalid formats. Her work deepened test coverage and established a foundation for safer, more reliable CSS feature development.

July 2025 monthly summary for mozilla/gecko-dev: Implemented CSS Parser tests for @custom-media, added a test file covering valid and invalid formats to validate parser behavior and edge cases; this work aligns with Bug 1975216 and WPT PR 53536 to support parsing @custom-media rule (a=testonly). The efforts increased test coverage and parser reliability for this CSS feature, reducing the risk of regressions in rendering custom media queries. No additional major bug fixes were reported in this period within the provided scope; the changes establish a foundation for ongoing parser correctness, test-driven validation, and collaboration with the WPT suite across the repository.
July 2025 monthly summary for mozilla/gecko-dev: Implemented CSS Parser tests for @custom-media, added a test file covering valid and invalid formats to validate parser behavior and edge cases; this work aligns with Bug 1975216 and WPT PR 53536 to support parsing @custom-media rule (a=testonly). The efforts increased test coverage and parser reliability for this CSS feature, reducing the risk of regressions in rendering custom media queries. No additional major bug fixes were reported in this period within the provided scope; the changes establish a foundation for ongoing parser correctness, test-driven validation, and collaboration with the WPT suite across the repository.
June 2025 monthly work summary for mozilla/gecko-dev. Delivered security-focused hardening of CSS style range evaluation and introduced range syntax for container style queries. Achieved robust type checks and taint propagation through conditional logic, enabling safer image-set and background-image calculations, while expanding CSS data-range capabilities.
June 2025 monthly work summary for mozilla/gecko-dev. Delivered security-focused hardening of CSS style range evaluation and introduced range syntax for container style queries. Achieved robust type checks and taint propagation through conditional logic, enabling safer image-set and background-image calculations, while expanding CSS data-range capabilities.
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