Firefox for iOS
C-Rank Grade: S (Elite) - 72/100
External PR Merge Rate: 82%
Response Time: -
First Timer Success: 79%
mozilla-mobile/firefox-ios has a recorded first-timer success rate of 78.9%. Repositories ranked S typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in mozilla-mobile/firefox-ios respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 71.7 places mozilla-mobile/firefox-ios in the S tier.
The external contributor pull request merge rate for mozilla-mobile/firefox-ios is 82.4%, based on public PR activity from non-core contributors.
mozilla-mobile/firefox-ios currently has 7 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Highly welcoming maintainers in mozilla-mobile/firefox-ios. Prompt code reviews with positive guidance for new contributors.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/mozilla-mobile/firefox-ios?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 14:00 UTC (14:00 UTC in your timezone). Recommended submission window is Wednesday - Friday from 13:00 to 17:00 UTC (13:00 - 17:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (96% approval). Large PRs (>500 lines) take ~115 hours (37% approval). Keep your diff compact for rapid review.
Multiple unused funcs, inits, and properties across Wallpapers/v1/. Warnings to fix: firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/Interface/WallpaperManager.swift:21 — canOnboardingBeShown(using:) firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/Interface/WallpaperManager.swift:22 — onboardingSeen() firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/Interface/WallpaperManager.swift:26 — checkForUpdates() firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/Interface/WallpaperManager.swift:86 — canOnboardingBeShown(using:) firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/Interface/WallpaperManager.swift:101 — onboardingSeen() firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/NetworkServices/WallpaperDataService.swift:11 — enum DataServiceError is unused firefox-ios/Client/Frontend/Home/Homepage/Wallpapers/v1/NetworkServices/WallpaperDataService.swift:16 — property wallpaperURLScheme is unused firefox-ios/Client/Frontend/Home/Homepage
Remove several unused declarations in PasswordManagerViewModel.swift and PasswordManagerListViewController.swift. Warnings to fix: firefox-ios/Client/Frontend/PasswordManagement/PasswordManagerViewModel.swift:13 — struct NewSearchInProgressError is unused firefox-ios/Client/Frontend/PasswordManagement/PasswordManagerViewModel.swift:176 — func setBreachIndexPath(indexPath:) is unused firefox-ios/Client/Frontend/PasswordManagement/PasswordManagerViewModel.swift:180 — func setBreachAlertsManager(_:) is unused firefox-ios/Client/Frontend/PasswordManagement/PasswordManagerViewModel.swift:186 — property rowHeight is unused firefox-ios/Client/Frontend/PasswordManagement/PasswordManagerViewModel.swift:187 — property searchHeight is unused firefox-ios/Client/Frontend/PasswordManagement/PasswordManagerListViewController.swift:30 — property selectedIndexPaths is unused Make sure to build the Periphery scheme in order to see those warnings. ℹ️ Reference Person @thatswinnie ┆Iss
Several Redux action enum cases are declared but never dispatched. Remove each case, and any reducer/middleware branch that pattern-matches on it. Warnings to fix: firefox-ios/Client/Frontend/Home/Homepage/Bookmark/BookmarksAction.swift:37 — case remove firefox-ios/Client/Frontend/Browser/BrowserViewController/Actions/GeneralBrowserAction.swift:82 — case startAtHome firefox-ios/Client/Frontend/Browser/BrowserViewController/Actions/NavigationBrowserAction.swift:41 — case tapOnWorldCupCountryPicker firefox-ios/Client/Frontend/Browser/MainMenu/Redux/MainMenuAction.swift:81 — case updateMenuCells firefox-ios/Client/Frontend/Home/Homepage/Redux/HomepageAction.swift:74 — case configuredSpacer firefox-ios/Client/Frontend/Browser/Tabs/Action/RemoteTabsPanelAction.swift:46 — case closeTabCompatible firefox-ios/Client/Frontend/Browser/Tabs/Action/TabPanelAction.swift:55 — case tabPanelDidAppear firefox-ios/Client/Frontend/WebCompatReporter/Redux/WebCompatReporterAction.swift:59
Three RemoteSettings/Application-Services types are declared but never referenced. Delete them. Warnings to fix: firefox-ios/Client/Application/RemoteSettings/RemoteRecords/ContentBlockingListRecord.swift:10 — struct ContentBlockingListRecord is unused firefox-ios/Client/Application/RemoteSettings/RemoteSettingsFetchConfig.swift:7 — struct RemoteSettingsFetchConfig is unused firefox-ios/Client/Application/RemoteSettings/Application Services/ASTranslationModelsFetcher.swift:26 — struct TranslationRecord is unused Make sure to build the Periphery scheme in order to see those warnings. ℹ️ Reference Person @thatswinnie ┆Issue is synchronized with this Jira Task
The Storage module is imported in several Browser and Library files that don't reference anything from it. Delete these import Storage lines. Warnings to fix: firefox-ios/Client/Frontend/Browser/BrowserViewController/Views/BrowserViewController.swift:10 firefox-ios/Client/Frontend/Browser/BrowserViewController/Actions/WebContextMenuActionsProvider.swift:9 firefox-ios/Client/Frontend/Browser/BrowserViewController/Extensions/BrowserViewController+ZoomPage.swift:6 firefox-ios/Client/Frontend/Browser/Authenticator.swift:7 firefox-ios/Client/Frontend/Browser/BackForwardListViewController.swift:8 firefox-ios/Client/Frontend/Browser/MetadataParserHelper.swift:7 firefox-ios/Client/Frontend/Browser/RecordVisitObservationManager.swift:8 firefox-ios/Client/Frontend/Browser/Search/ClientTabsSearchWrapper.swift:6 firefox-ios/Client/Frontend/Browser/Search/SearchViewModel.swift:6 firefox-ios/Client/Frontend/Browser/SearchEngines/RecentSearchProvider.swift:7 firefox-ios/Client/Frontend/Browser/Searc
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When evaluating whether to contribute to mozilla-mobile/firefox-ios, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of mozilla-mobile/firefox-ios acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 82.4% were successfully merged into the primary branch.
mozilla-mobile/firefox-ios has a recorded first-timer success rate of 78.9%. Repositories ranked Elite typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 71.7 places mozilla-mobile/firefox-ios in the Elite tier.
The external pull request merge rate is 82.4%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, mozilla-mobile/firefox-ios currently has 7 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for mozilla-mobile/firefox-ios are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.