mozilla-mobile/firefox-ios
Mar 2025 – Oct 2025
8 Months active
Languages Used
Objective-CSwiftBashYAMLHTML
Technical Skills
Bug FixingDependency InjectionFile ManagementMobile DevelopmentSettings ManagementSwift
Yoana Rios
PROFILE
Yoana Rios
Yrris Rios contributed to mozilla-mobile/firefox-ios by delivering user-facing features and stability improvements across tab management, UI/UX, and privacy. Over eight months, Yrris refactored tab scrolling with protocol-oriented Swift, modernized concurrency for RemoteTabs, and enhanced cookie isolation between private and regular tabs. They improved test reliability and CI/CD quality gates using Swift and YAML, while also migrating core modules toward Swift 6. Their work included telemetry integration with Glean, feature flag rollouts for risk management, and UI refinements for address bar and toolbar behaviors. These efforts deepened code maintainability, improved user experience, and strengthened platform reliability for Firefox iOS.
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
79Total
Bugs
15
Commits
79
Features
27
Lines of code
10,257
Activity Months8
Work History
October 2025
9 Commits • 5 Features
Oct 1, 2025Month: 2025-10 — Focused on stabilizing core UX, improving telemetry reliability, and preparing for Swift 6 migration in mozilla-mobile/firefox-ios. Key outcomes include concurrency-safety refinements for Top Sites, telemetry migration to GleanWrapper with stronger mocks, default Zoom enabled by default, a feature-flag approach for the tab scroll refactor, and testing enhancements for Marketplace navigation and tab migration. Security and UI reliability improvements were delivered via marketplace URL handling restrictions and toolbar behavior fixes. Major bugs fixed in this period include restricting marketplace-kit URL navigation to explicit user actions and resolving reader-mode toolbar visibility/animation issues to ensure smooth UX. Technologies and skills demonstrated include Swift concurrency and Sendable types, local snapshot patterns, Glean and MockGleanWrapper usage, Nimbus feature flags and debug-driven QA, and protocol-based refactors to improve testability.
9 Commits • 5 Features
Oct 1, 2025Month: 2025-10 — Focused on stabilizing core UX, improving telemetry reliability, and preparing for Swift 6 migration in mozilla-mobile/firefox-ios. Key outcomes include concurrency-safety refinements for Top Sites, telemetry migration to GleanWrapper with stronger mocks, default Zoom enabled by default, a feature-flag approach for the tab scroll refactor, and testing enhancements for Marketplace navigation and tab migration. Security and UI reliability improvements were delivered via marketplace URL handling restrictions and toolbar behavior fixes. Major bugs fixed in this period include restricting marketplace-kit URL navigation to explicit user actions and resolving reader-mode toolbar visibility/animation issues to ensure smooth UX. Technologies and skills demonstrated include Swift concurrency and Sendable types, local snapshot patterns, Glean and MockGleanWrapper usage, Nimbus feature flags and debug-driven QA, and protocol-based refactors to improve testability.
October 2025
September 2025
8 Commits • 1 Features
Sep 1, 2025September 2025 performance summary for mozilla-mobile/firefox-ios. Delivered substantial improvements to tab UX stability and privacy isolation, strengthened history accuracy with a Visit Observation Manager, and hardened test reliability. Key user-facing outcomes include fewer cross-tab cookie visibility issues, smoother tab scrolling, a polished address bar interaction, and more dependable history data. These changes reduce privacy risks, lower user-reported glitches, and accelerate release cadence by decreasing flaky CI failures. Technologies demonstrated include Swift/iOS UI work, TabScrollController refactor, Visit Observation Manager integration, and Xcode 16 compatibility.
September 2025
8 Commits • 1 Features
Sep 1, 2025September 2025 performance summary for mozilla-mobile/firefox-ios. Delivered substantial improvements to tab UX stability and privacy isolation, strengthened history accuracy with a Visit Observation Manager, and hardened test reliability. Key user-facing outcomes include fewer cross-tab cookie visibility issues, smoother tab scrolling, a polished address bar interaction, and more dependable history data. These changes reduce privacy risks, lower user-reported glitches, and accelerate release cadence by decreasing flaky CI failures. Technologies demonstrated include Swift/iOS UI work, TabScrollController refactor, Visit Observation Manager integration, and Xcode 16 compatibility.
August 2025
10 Commits • 2 Features
Aug 1, 2025Summary for 2025-08 (mozilla-mobile/firefox-ios): Delivered a major Tab Scrolling UX refactor with a protocol-based architecture, a dedicated TabScrollHandler, and a controlled feature-flag rollout to minimize risk. Stabilized the test suite by making document removal synchronous, addressing flaky timeouts in test expectations. Completed Swift 6 migration with Strict Concurrency enabled in BrowserPrompts and OpenPassBookHelper to improve safety and code quality. These efforts reduce crash surfaces, improve tab navigation responsiveness, and position the project for a safer broader rollout while maintaining high reliability.
10 Commits • 2 Features
Aug 1, 2025Summary for 2025-08 (mozilla-mobile/firefox-ios): Delivered a major Tab Scrolling UX refactor with a protocol-based architecture, a dedicated TabScrollHandler, and a controlled feature-flag rollout to minimize risk. Stabilized the test suite by making document removal synchronous, addressing flaky timeouts in test expectations. Completed Swift 6 migration with Strict Concurrency enabled in BrowserPrompts and OpenPassBookHelper to improve safety and code quality. These efforts reduce crash surfaces, improve tab navigation responsiveness, and position the project for a safer broader rollout while maintaining high reliability.
August 2025
July 2025
7 Commits • 3 Features
Jul 1, 2025Month: 2025-07 — Firefox iOS development monthly summary for mozilla-mobile/firefox-ios. Focused on stabilizing UI behavior, improving test stability, modernizing concurrency, and increasing cookie reliability. Deliverables include UI refinements to the tab/address bar autohide/reveal, stability fixes for WebView delegate tests on Xcode 26, concurrency modernization for RemoteTabs, a refactor of the TabScrollController to LegacyTabScrollController, and enhanced cookie persistence tests. Business value centers on improved user experience, platform stability across simulators, reduced maintenance cost, and more robust data handling across tabs and relaunches. Technologies demonstrated span Swift 6 concurrency, MainActor adoption, XCTNSPredicateExpectation in tests, UI test automation, and architectural refactoring practiced for maintainability.
July 2025
7 Commits • 3 Features
Jul 1, 2025Month: 2025-07 — Firefox iOS development monthly summary for mozilla-mobile/firefox-ios. Focused on stabilizing UI behavior, improving test stability, modernizing concurrency, and increasing cookie reliability. Deliverables include UI refinements to the tab/address bar autohide/reveal, stability fixes for WebView delegate tests on Xcode 26, concurrency modernization for RemoteTabs, a refactor of the TabScrollController to LegacyTabScrollController, and enhanced cookie persistence tests. Business value centers on improved user experience, platform stability across simulators, reduced maintenance cost, and more robust data handling across tabs and relaunches. Technologies demonstrated span Swift 6 concurrency, MainActor adoption, XCTNSPredicateExpectation in tests, UI test automation, and architectural refactoring practiced for maintainability.
June 2025
9 Commits • 4 Features
Jun 1, 2025June 2025 monthly summary for mozilla-mobile/firefox-ios: Focused on delivering UX improvements, preparing for Swift 6 migration, strengthening CI/quality gates, and stabilizing the test suite. This period emphasized business value through user-facing enhancements, better telemetry, and more robust release quality.
9 Commits • 4 Features
Jun 1, 2025June 2025 monthly summary for mozilla-mobile/firefox-ios: Focused on delivering UX improvements, preparing for Swift 6 migration, strengthening CI/quality gates, and stabilizing the test suite. This period emphasized business value through user-facing enhancements, better telemetry, and more robust release quality.
June 2025
May 2025
16 Commits • 6 Features
May 1, 2025May 2025 focused on delivering high-value features, improving user experience, and stabilizing code quality for mozilla-mobile/firefox-ios. Key outcomes include enforcing test coverage with Danger gates, UI/UX improvements for credit card management and onboarding, zoom and appearance settings enhancements with telemetry, and privacy improvements via default tracking protection. Stability work included a targeted fullscreen glitch investigation and corresponding test updates. Rollouts extended to developer and beta channels for appearance settings, along with broader test-infra improvements that reduced UI noise and increased test reliability.
May 2025
16 Commits • 6 Features
May 1, 2025May 2025 focused on delivering high-value features, improving user experience, and stabilizing code quality for mozilla-mobile/firefox-ios. Key outcomes include enforcing test coverage with Danger gates, UI/UX improvements for credit card management and onboarding, zoom and appearance settings enhancements with telemetry, and privacy improvements via default tracking protection. Stability work included a targeted fullscreen glitch investigation and corresponding test updates. Rollouts extended to developer and beta channels for appearance settings, along with broader test-infra improvements that reduced UI noise and increased test reliability.
April 2025
10 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for mozilla-mobile/firefox-ios focusing on code quality, UI consistency, and reliability. Key architectural cleanups, zoom management centralization, and iPad UI behavior improvements were delivered, alongside fixes to private tabs data handling and test stability. These efforts improve maintainability, user experience, and developer velocity.
10 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for mozilla-mobile/firefox-ios focusing on code quality, UI consistency, and reliability. Key architectural cleanups, zoom management centralization, and iPad UI behavior improvements were delivered, alongside fixes to private tabs data handling and test stability. These efforts improve maintainability, user experience, and developer velocity.
April 2025
March 2025
10 Commits • 3 Features
Mar 1, 2025March 2025 focused on UX improvements, stability, and UI refinements in Firefox iOS. Key outcomes include enhanced download workflows (PNG/JPEG support and polished toasts), full-screen support for web content and video, and targeted fixes that reduce visual artifacts and crash risk. These efforts drive smoother user experiences, higher reliability, and stronger platform capabilities.
March 2025
10 Commits • 3 Features
Mar 1, 2025March 2025 focused on UX improvements, stability, and UI refinements in Firefox iOS. Key outcomes include enhanced download workflows (PNG/JPEG support and polished toasts), full-screen support for web content and video, and targeted fixes that reduce visual artifacts and crash risk. These efforts drive smoother user experiences, higher reliability, and stronger platform capabilities.
Activity
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Quality Metrics
Correctness88.6%
Maintainability87.6%
Architecture83.2%
Performance81.2%
AI Usage21.8%
Skills & Technologies
Programming Languages
BashHTMLObjective-CSwiftYAML
Technical Skills
AnimationAsynchronous ProgrammingAutomationBug FixingBuild ConfigurationCI/CDCode DocumentationCode OrganizationCode QualityCode ReviewCode Review AutomationConcurrencyConfiguration ManagementDebuggingDebugging Tools
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