145 files declare their use of ConfigFactoryInterface

AccountSettingsForm.php in core/modules/user/src/AccountSettingsForm.php
AdminNegotiator.php in core/modules/user/src/Theme/AdminNegotiator.php
AdminPathConfigEntityConverter.php in core/lib/Drupal/Core/ParamConverter/AdminPathConfigEntityConverter.php
AjaxBasePageNegotiator.php in core/lib/Drupal/Core/Theme/AjaxBasePageNegotiator.php
AjaxResponseAttachmentsProcessor.php in core/lib/Drupal/Core/Ajax/AjaxResponseAttachmentsProcessor.php
AutomatedCron.php in core/modules/automated_cron/src/EventSubscriber/AutomatedCron.php
BaseFieldOverrideStorage.php in core/lib/Drupal/Core/Field/BaseFieldOverrideStorage.php
BasicAuth.php in core/modules/basic_auth/src/Authentication/Provider/BasicAuth.php
BasicSettingsForm.php in core/modules/views_ui/src/Form/BasicSettingsForm.php
BigPipe.php in core/modules/big_pipe/src/Render/BigPipe.php
BigPipeResponseAttachmentsProcessor.php in core/modules/big_pipe/src/Render/BigPipeResponseAttachmentsProcessor.php
BigPipeResponseAttachmentsProcessorTest.php in core/modules/big_pipe/tests/src/Unit/Render/BigPipeResponseAttachmentsProcessorTest.php
BookManager.php in core/modules/book/src/BookManager.php
CheckRequirementsTest.php in core/modules/migrate/tests/src/Unit/Plugin/migrate/destination/CheckRequirementsTest.php
CKEditor5StylesheetsMessage.php in core/modules/ckeditor5/src/CKEditor5StylesheetsMessage.php
Color.php in core/modules/color/src/Plugin/migrate/destination/Color.php
CommentManager.php in core/modules/comment/src/CommentManager.php
Config.php in core/modules/migrate/src/Plugin/migrate/destination/Config.php
ConfigEntityMapper.php in core/modules/config_translation/src/ConfigEntityMapper.php
ConfigEntityStorage.php in core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
ConfigEntityStorageTest.php in core/tests/Drupal/Tests/Core/Config/Entity/ConfigEntityStorageTest.php
ConfigFormBase.php in core/lib/Drupal/Core/Form/ConfigFormBase.php
ConfigFormBaseTrait.php in core/lib/Drupal/Core/Form/ConfigFormBaseTrait.php
ConfigNamesMapper.php in core/modules/config_translation/src/ConfigNamesMapper.php
ConfigNamesMapperTest.php in core/modules/config_translation/tests/src/Unit/ConfigNamesMapperTest.php
Contains \Drupal\Tests\config_translation\Unit\ConfigNamesMapperTest.
ConfigSubscriber.php in core/modules/language/src/EventSubscriber/ConfigSubscriber.php
ConfigurableLanguageManager.php in core/modules/language/src/ConfigurableLanguageManager.php
ContactPageAccess.php in core/modules/contact/src/Access/ContactPageAccess.php
CredentialForm.php in core/modules/migrate_drupal_ui/src/Form/CredentialForm.php
CronForm.php in core/modules/system/src/Form/CronForm.php
CronTest.php in core/tests/Drupal/Tests/Core/CronTest.php
CustomPageExceptionHtmlSubscriber.php in core/lib/Drupal/Core/EventSubscriber/CustomPageExceptionHtmlSubscriber.php
DatabaseFileUsageBackend.php in core/modules/file/src/FileUsage/DatabaseFileUsageBackend.php
DateFormatter.php in core/lib/Drupal/Core/Datetime/DateFormatter.php
DateTimeIso8601NormalizerTest.php in core/modules/serialization/tests/src/Unit/Normalizer/DateTimeIso8601NormalizerTest.php
DateTimeNormalizer.php in core/modules/serialization/src/Normalizer/DateTimeNormalizer.php
DateTimeNormalizerTest.php in core/modules/serialization/tests/src/Unit/Normalizer/DateTimeNormalizerTest.php
DbUpdateNegotiator.php in core/modules/system/src/Theme/DbUpdateNegotiator.php
DefaultNegotiator.php in core/lib/Drupal/Core/Theme/DefaultNegotiator.php
DefaultProcessor.php in core/modules/aggregator/src/Plugin/aggregator/processor/DefaultProcessor.php
DiffFormatter.php in core/lib/Drupal/Core/Diff/DiffFormatter.php
DynamicLocalTasks.php in core/modules/media/src/Plugin/Derivative/DynamicLocalTasks.php
EditorConfigTranslationSubscriber.php in core/modules/editor/src/EventSubscriber/EditorConfigTranslationSubscriber.php
EntityConfigBase.php in core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php
EntityResource.php in core/modules/rest/src/Plugin/rest/resource/EntityResource.php
EntitySearchPage.php in core/modules/search/src/Plugin/migrate/destination/EntitySearchPage.php
Fast404ExceptionHtmlSubscriber.php in core/lib/Drupal/Core/EventSubscriber/Fast404ExceptionHtmlSubscriber.php
FieldConfigStorage.php in core/modules/field/src/FieldConfigStorage.php
FieldStorageAddForm.php in core/modules/field_ui/src/Form/FieldStorageAddForm.php
FieldStorageConfigStorage.php in core/modules/field/src/FieldStorageConfigStorage.php
FileEntityNormalizer.php in core/modules/hal/src/Normalizer/FileEntityNormalizer.php
FileSystemForm.php in core/modules/system/src/Form/FileSystemForm.php
FileUsageBase.php in core/modules/file/src/FileUsage/FileUsageBase.php
FilterFormatListBuilder.php in core/modules/filter/src/FilterFormatListBuilder.php
FinalExceptionSubscriber.php in core/lib/Drupal/Core/EventSubscriber/FinalExceptionSubscriber.php
FinishResponseSubscriber.php in core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
FormBase.php in core/lib/Drupal/Core/Form/FormBase.php
ForumBreadcrumbBuilderBase.php in core/modules/forum/src/Breadcrumb/ForumBreadcrumbBuilderBase.php
ForumManager.php in core/modules/forum/src/ForumManager.php
ForumUninstallValidator.php in core/modules/forum/src/ForumUninstallValidator.php
GDToolkit.php in core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php
HtmlResponseAttachmentsProcessor.php in core/lib/Drupal/Core/Render/HtmlResponseAttachmentsProcessor.php
Image.php in core/modules/media/src/Plugin/media/Source/Image.php
ImageToolkitBase.php in core/lib/Drupal/Core/ImageToolkit/ImageToolkitBase.php
ImageToolkitForm.php in core/modules/system/src/Form/ImageToolkitForm.php
ImageToolkitManager.php in core/lib/Drupal/Core/ImageToolkit/ImageToolkitManager.php
IncrementalForm.php in core/modules/migrate_drupal_ui/src/Form/IncrementalForm.php
ItemsImporter.php in core/modules/aggregator/src/ItemsImporter.php
JsonapiMaintenanceModeSubscriber.php in core/modules/jsonapi/src/EventSubscriber/JsonapiMaintenanceModeSubscriber.php
LanguageListBuilder.php in core/modules/language/src/LanguageListBuilder.php
LanguageNegotiationMethodBase.php in core/modules/language/src/LanguageNegotiationMethodBase.php
LanguageNegotiationMethodInterface.php in core/modules/language/src/LanguageNegotiationMethodInterface.php
LanguageNegotiator.php in core/modules/language/src/LanguageNegotiator.php
LocaleConfigManager.php in core/modules/locale/src/LocaleConfigManager.php
LocaleConfigSubscriber.php in core/modules/locale/src/LocaleConfigSubscriber.php
LocaleLookup.php in core/modules/locale/src/LocaleLookup.php
LocaleTranslation.php in core/modules/locale/src/LocaleTranslation.php
MailManager.php in core/lib/Drupal/Core/Mail/MailManager.php
MaintenanceMode.php in core/lib/Drupal/Core/Site/MaintenanceMode.php
MaintenanceModeSubscriber.php in core/lib/Drupal/Core/EventSubscriber/MaintenanceModeSubscriber.php
ManyPlaceholderTest.php in core/modules/big_pipe/tests/src/Unit/Render/ManyPlaceholderTest.php
MediaRouteProvider.php in core/modules/media/src/Routing/MediaRouteProvider.php
MediaSettingsForm.php in core/modules/media/src/Form/MediaSettingsForm.php
MediaSourceBase.php in core/modules/media/src/MediaSourceBase.php
MigrateUpgradeFormBase.php in core/modules/migrate_drupal_ui/src/Form/MigrateUpgradeFormBase.php
MigrationPluginManager.php in core/modules/migrate_drupal/src/MigrationPluginManager.php
ModuleExtensionList.php in core/lib/Drupal/Core/Extension/ModuleExtensionList.php
NegotiationBrowserForm.php in core/modules/language/src/Form/NegotiationBrowserForm.php
NegotiationConfigureForm.php in core/modules/language/src/Form/NegotiationConfigureForm.php
NegotiationUrlForm.php in core/modules/language/src/Form/NegotiationUrlForm.php
NodeAdminRouteSubscriber.php in core/modules/node/src/EventSubscriber/NodeAdminRouteSubscriber.php
NodePreviewForm.php in core/modules/node/src/Form/NodePreviewForm.php
OEmbed.php in core/modules/media/src/Plugin/media/Source/OEmbed.php
OEmbedFormatter.php in core/modules/media/src/Plugin/Field/FieldFormatter/OEmbedFormatter.php
PathBasedBreadcrumbBuilder.php in core/modules/system/src/PathBasedBreadcrumbBuilder.php
PathMatcher.php in core/lib/Drupal/Core/Path/PathMatcher.php
PathProcessorFront.php in core/lib/Drupal/Core/PathProcessor/PathProcessorFront.php
PathProcessorFrontTest.php in core/tests/Drupal/Tests/Core/PathProcessor/PathProcessorFrontTest.php
PathProcessorLanguage.php in core/modules/language/src/HttpKernel/PathProcessorLanguage.php
PerformanceForm.php in core/modules/system/src/Form/PerformanceForm.php
ProviderRepository.php in core/modules/media/src/OEmbed/ProviderRepository.php
Query.php in core/lib/Drupal/Core/Config/Entity/Query/Query.php
QueryFactory.php in core/lib/Drupal/Core/Config/Entity/Query/QueryFactory.php
ReadOnlyModeMethodFilter.php in core/modules/jsonapi/src/Routing/ReadOnlyModeMethodFilter.php
RegionalForm.php in core/modules/system/src/Form/RegionalForm.php
RelationLinkManager.php in core/modules/hal/src/LinkManager/RelationLinkManager.php
ReviewForm.php in core/modules/migrate_drupal_ui/src/Form/ReviewForm.php
SchemaListenerController.php in core/modules/config/tests/config_test/src/SchemaListenerController.php
SearchBlockForm.php in core/modules/search/src/Form/SearchBlockForm.php
SearchIndex.php in core/modules/search/src/SearchIndex.php
SearchPageListBuilder.php in core/modules/search/src/SearchPageListBuilder.php
SearchPageRepository.php in core/modules/search/src/SearchPageRepository.php
SearchTextProcessor.php in core/modules/search/src/SearchTextProcessor.php
SecurityAdvisoriesFetcher.php in core/modules/system/src/SecurityAdvisories/SecurityAdvisoriesFetcher.php
SecurityFileUploadEventSubscriber.php in core/modules/system/src/EventSubscriber/SecurityFileUploadEventSubscriber.php
SettingsForm.php in core/modules/aggregator/src/Form/SettingsForm.php
ShortcutSetStorage.php in core/modules/shortcut/src/ShortcutSetStorage.php
SimpleConfigSectionStorage.php in core/modules/layout_builder/tests/modules/layout_builder_test/src/Plugin/SectionStorage/SimpleConfigSectionStorage.php
SiteInformationForm.php in core/modules/system/src/Form/SiteInformationForm.php
SiteMaintenanceModeForm.php in core/modules/system/src/Form/SiteMaintenanceModeForm.php
StaticMenuLinkOverrides.php in core/lib/Drupal/Core/Menu/StaticMenuLinkOverrides.php
StatisticsSettingsForm.php in core/modules/statistics/src/StatisticsSettingsForm.php
SyndicateBlock.php in core/modules/node/src/Plugin/Block/SyndicateBlock.php
SysLog.php in core/modules/syslog/src/Logger/SysLog.php
SystemBrandingBlock.php in core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
SystemBrandingOffCanvasForm.php in core/modules/system/src/Form/SystemBrandingOffCanvasForm.php
SystemMenuOffCanvasForm.php in core/modules/system/src/Form/SystemMenuOffCanvasForm.php
TemporaryJsonapiFileFieldUploader.php in core/modules/jsonapi/src/Controller/TemporaryJsonapiFileFieldUploader.php
TestProcessor.php in core/modules/aggregator/tests/modules/aggregator_test/src/Plugin/aggregator/processor/TestProcessor.php
TestToolkit.php in core/modules/system/tests/modules/image_test/src/Plugin/ImageToolkit/TestToolkit.php
ThemeController.php in core/modules/system/src/Controller/ThemeController.php
ThemeExtensionList.php in core/lib/Drupal/Core/Extension/ThemeExtensionList.php
ThemeHandler.php in core/lib/Drupal/Core/Extension/ThemeHandler.php
ThemeInstaller.php in core/lib/Drupal/Core/Extension/ThemeInstaller.php
ThemeSettings.php in core/modules/system/src/Plugin/migrate/destination/d7/ThemeSettings.php
ThemeSettingsForm.php in core/modules/system/src/Form/ThemeSettingsForm.php
TimestampNormalizerTest.php in core/modules/serialization/tests/src/Unit/Normalizer/TimestampNormalizerTest.php
TimeZoneResolver.php in core/modules/system/src/TimeZoneResolver.php
TypeLinkManager.php in core/modules/hal/src/LinkManager/TypeLinkManager.php
UpdateFetcher.php in core/modules/update/src/UpdateFetcher.php
UpdateManager.php in core/modules/update/src/UpdateManager.php
UpdateProcessor.php in core/modules/update/src/UpdateProcessor.php
UpdateSettingsForm.php in core/modules/update/src/UpdateSettingsForm.php
ViewsData.php in core/modules/views/src/ViewsData.php
ViewUIConverter.php in core/modules/views_ui/src/ParamConverter/ViewUIConverter.php

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.