diff --git a/extension/src/_locales/fr/messages.json b/extension/src/_locales/fr/messages.json
index a90e2413..35e25029 100644
--- a/extension/src/_locales/fr/messages.json
+++ b/extension/src/_locales/fr/messages.json
@@ -139,10 +139,6 @@
     "message": "L’URL de départ doit être une URL valide",
     "description": "A validation error when the web app start URL is invalid"
   },
-  "webAppValidationStartURLScope": {
-    "message": "L’URL de départ doit être dans le domaine :",
-    "description": "A validation error when the web app start URL is out-of-scope, with the scope displayed after the colon"
-  },
   "webAppValidationIconURLInvalid": {
     "message": "L’URL de l’icône doit être une URL valide",
     "description": "A validation error when the web app icon URL is invalid"
@@ -215,10 +211,6 @@
     "message": "Cette extension échange des données personnelles (site web actuel et URLs des manifestes, ainsi que d’autres détails PWA) avec le programme natif lorsque l’utilisateur lance l'installation de la PWA. Ceci est nécessaire pour obtenir et analyser correctement le manifeste de l'application Web et installer la PWA. Les données sont stockées sur l’ordinateur tant que PWA est installée. Aucune donnée personnelle n’est stockée en dehors de l’ordinateur ou envoyée à des tierces parties.",
     "description": "The privacy policy notice on the setup page"
   },
-  "setupPageLicenseAccept": {
-    "message": "J’accepte l’accord de licence",
-    "description": "The license accept button on the setup page"
-  },
   "setupPageConnectorInstallationMain": {
     "message": "Vous devez installer le programme complémentaire pour que l'extension puisse gérer et lancer l’environnement d’exécution dédié et les profils de vos applications web. L’extension ne fonctionnera pas sans ce programme. Veuillez suivre les instructions ci-dessous pour l'installer.",
     "description": "The main connector installation notice on the setup page"
diff --git a/extension/src/_locales/id/messages.json b/extension/src/_locales/id/messages.json
index 7bdbce1d..ab93de21 100644
--- a/extension/src/_locales/id/messages.json
+++ b/extension/src/_locales/id/messages.json
@@ -139,10 +139,6 @@
     "message": "Link URL awalan harus bersifat valid",
     "description": "A validation error when the web app start URL is invalid"
   },
-  "webAppValidationStartURLScope": {
-    "message": "Link URL awalan harus berada dalam cakupan berikut:",
-    "description": "A validation error when the web app start URL is out-of-scope, with the scope displayed after the colon"
-  },
   "webAppValidationIconURLInvalid": {
     "message": "Link URL ikon harus bersifat valid",
     "description": "A validation error when the web app icon URL is invalid"
diff --git a/extension/src/_locales/ja/messages.json b/extension/src/_locales/ja/messages.json
index cfca7e98..b6c2cd01 100644
--- a/extension/src/_locales/ja/messages.json
+++ b/extension/src/_locales/ja/messages.json
@@ -155,10 +155,6 @@
     "message": "この拡張機能は、ユーザーが PWA のインストールを開始したときに、個人データ（現在のウェブサイトとマニフェストのURL、およびその他のPWA詳細）をネイティブプログラムと交換します。これは、Web アプリケーションマニフェストを正しく取得・解析し、PWA をインストールするために必要です。データは、その PWA がインストールされている限り、コンピューターに保存されます。個人データがコンピューターから離れたり、第三者に送信されたりすることはありません。",
     "description": "The privacy policy notice on the setup page"
   },
-  "setupPageLicenseAccept": {
-    "message": "ライセンス通知に同意する",
-    "description": "The license accept button on the setup page"
-  },
   "setupPageConnectorInstallationMain": {
     "message": "拡張機能が Web アプリケーションのランタイムとプロファイルを別々に管理し、実行できるように、追加のプログラムをインストールする必要があります。このプログラムがないと、拡張機能は動作しません。以下の手順でインストールしてください。",
     "description": "The main connector installation notice on the setup page"
diff --git a/extension/src/_locales/zh-CN/messages.json b/extension/src/_locales/zh-CN/messages.json
new file mode 100644
index 00000000..3c1e1493
--- /dev/null
+++ b/extension/src/_locales/zh-CN/messages.json
@@ -0,0 +1,498 @@
+{
+  "appName": {
+    "message": "Progressive Web Apps for Firefox",
+    "description": "The name of the application, should not be translated"
+  },
+  "appShortName": {
+    "message": "PWAsForFirefox",
+    "description": "The short name of the application, should not be translated"
+  },
+  "appDescription": {
+    "message": "一个用于在Mozilla Firefox上安装、管理、使用渐进式网页应用程序（PWA）的工具",
+    "description": "The description of the application"
+  },
+  "actionInstallSite": {
+    "message": "安装此网站",
+    "description": "Instruct users that they can install the current site here"
+  },
+  "actionLaunchSite": {
+    "message": "启动此网站",
+    "description": "Instruct users that they can launch the current site here"
+  },
+  "updateNotificationTitle": {
+    "message": "PWAsForFirefox更新",
+    "description": "The title of the update notification, displayed when an update is available"
+  },
+  "updateNotificationMessage": {
+    "message": "PWAsForFirefox有可用的更新。请点击通知以显示更新说明。",
+    "description": "The message of the update notification, displayed when an update is available"
+  },
+  "commonError": {
+    "message": "错误",
+    "description": "Displayed before error messages or as a popup title"
+  },
+  "commonWarning": {
+    "message": "警告",
+    "description": "Displayed before warning messages or as a popup title"
+  },
+  "commonNote": {
+    "message": "提示",
+    "description": "Displayed before note messages or as a popup title"
+  },
+  "commonClose": {
+    "message": "关闭",
+    "description": "Displayed as a label for a close button"
+  },
+  "commonCancel": {
+    "message": "取消",
+    "description": "Displayed as a label for a cancel button"
+  },
+  "commonLoading": {
+    "message": "正在加载…",
+    "description": "Displayed when things are still loading"
+  },
+  "commonAnd": {
+    "message": "和",
+    "description": "The \"and\" conjunction, used between untranslatable words"
+  },
+  "commonOr": {
+    "message": "或",
+    "description": "The \"or\" conjunction, used between untranslatable words"
+  },
+  "commonExtensionVersion": {
+    "message": "扩展版本：",
+    "description": "Displayed before the extension version"
+  },
+  "commonFirefoxVersion": {
+    "message": "Firefox 版本：",
+    "description": "Displayed before the main browser version"
+  },
+  "webAppName": {
+    "message": "名称",
+    "description": "The name property of a web app"
+  },
+  "webAppDescription": {
+    "message": "描述",
+    "description": "The description property of a web app"
+  },
+  "webAppCategories": {
+    "message": "分类",
+    "description": "The categories property of a web app"
+  },
+  "webAppKeywords": {
+    "message": "关键词",
+    "description": "The keywords property of a web app"
+  },
+  "webAppStartURL": {
+    "message": "起始网址",
+    "description": "The start URL property of a web app"
+  },
+  "webAppIconURL": {
+    "message": "图标网址",
+    "description": "The icon URL property of a web app"
+  },
+  "webAppID": {
+    "message": "ID",
+    "description": "The ID property of a web app"
+  },
+  "webAppProfile": {
+    "message": "配置文件",
+    "description": "The profile property of a web app"
+  },
+  "profileName": {
+    "message": "名称",
+    "description": "The name property of a profile"
+  },
+  "profileDescription": {
+    "message": "描述",
+    "description": "The description property of a profile"
+  },
+  "profileTemplate": {
+    "message": "模板",
+    "description": "The template property of a profile"
+  },
+  "profileTemplatePlaceholder": {
+    "message": "输入配置文件模板的路径",
+    "description": "The placeholder for the template input"
+  },
+  "profileID": {
+    "message": "ID",
+    "description": "The ID property of a profile"
+  },
+  "webAppValidationNameReuse": {
+    "message": "名称不能与已存在的网页应用相同",
+    "description": "A validation error when the web app name is reused"
+  },
+  "webAppValidationStartURLInvalid": {
+    "message": "起始网址必须是有效的网址",
+    "description": "A validation error when the web app start URL is invalid"
+  },
+  "webAppValidationIconURLInvalid": {
+    "message": "图标网址必须是有效的网址",
+    "description": "A validation error when the web app icon URL is invalid"
+  },
+  "setupPageTitle": {
+    "message": "设置Progressive Web Apps for Firefox",
+    "description": "The title of the setup page"
+  },
+  "setupPageTabLicenseAgreement": {
+    "message": "授权协议",
+    "description": "The licence agreement tab on the setup page"
+  },
+  "setupPageTabRuntimeInstallation": {
+    "message": "运行环境安装",
+    "description": "The runtime installation tab on the setup page"
+  },
+  "setupPageTabReady": {
+    "message": "完成",
+    "description": "The ready tab on the setup page"
+  },
+  "setupPageLicenseThirdPartyDownloaded": {
+    "message": "在用户首次安装运行环境时，将下载以下的开源软件：",
+    "description": "The downloaded third-party assets and code notice on the setup page"
+  },
+  "setupPageLicense7ZipDownloaded": {
+    "message": "如果尚未安装，安装Windows运行环境时将安装 <a href=\"https://7-zip.org/\" target=\"_blank\">7-Zip</a> 。 7-Zip项目由Igor Pavlov和 <a href=\"https://7-zip.org/license.txt\" target=\"_blank\">根据GNU LGPL等许可证</a>授予许可。本项目与7-Zip项目或其开发者没有任何关联。",
+    "description": "The notice for downloaded 7-Zip on the setup page"
+  },
+  "setupPageLicenseConsent": {
+    "message": "如果您不同意上述条款，您将不能使用此扩展。在这种情况下，您可以通过下方按钮卸载。",
+    "description": "The required consent and uninstallation notice on the setup page"
+  },
+  "setupPageLicenseUninstallation": {
+    "message": "如果您不同意这些条款，您将不能使用扩展。 扩展将被卸载。如果您改变主意，您可以稍后重新安装。",
+    "description": "The dialog displayed when the user declines the license agreement"
+  },
+  "setupPageLicenseDecline": {
+    "message": "不接受并卸载",
+    "description": "The decline and uninstall button on the setup page"
+  },
+  "setupPageLicenseAccept": {
+    "message": "接受协议",
+    "description": "The license accept button on the setup page"
+  },
+  "setupPageAdvancedOptionsTitle": {
+    "message": "高级选项",
+    "description": "The advanced runtime installation options toggle on the setup page"
+  },
+  "instructionsPageTitle": {
+    "message": "安装说明",
+    "description": "The title of the installation instructions page"
+  },
+  "instructionsPageTabWindows": {
+    "message": "Windows",
+    "description": "The Microsoft Windows tab on the instructions page"
+  },
+  "instructionsPageTabDebian": {
+    "message": "Debian系Linux（DEB）",
+    "description": "The Debian (DEB) tab on the instructions page"
+  },
+  "instructionsPageTabRedHat": {
+    "message": "Red Hat系Linux（RPM）",
+    "description": "The Red Hat (RPM) tab on the instructions page"
+  },
+  "instructionsPageTabArch": {
+    "message": "Arch系Linux（AUR）",
+    "description": "The Arch (AUR) tab on the instructions page"
+  },
+  "instructionsPageTabGentoo": {
+    "message": "Gentoo系Linux",
+    "description": "The Gentoo tab on the instructions page"
+  },
+  "instructionsPageTabNixOS": {
+    "message": "NixOS Linux",
+    "description": "The NixOS tab on the instructions page"
+  },
+  "instructionsPageTabMacOS": {
+    "message": "macOS",
+    "description": "The macOS tab on the instructions page"
+  },
+  "instructionsPageTabBSD": {
+    "message": "BSD",
+    "description": "The BSD tab on the instructions page"
+  },
+  "instructionsPageTabOtherPlatforms": {
+    "message": "其它平台",
+    "description": "The other platforms tab on the instructions page"
+  },
+  "instructionsPageInstallManualMSITitle": {
+    "message": "若要手动安装该程序：",
+    "description": "The title of the manual MSI installation option"
+  },
+  "installPageTitle": {
+    "message": "安装此网页应用",
+    "description": "The title of the install web app page"
+  },
+  "installPageCreateProfile": {
+    "message": "创建新的配置文件",
+    "description": "The profile creation option on the install web app page"
+  },
+  "installPageAutoCreateProfile": {
+    "message": "自动创建新配置文件",
+    "description": "The automatic profile creation option on the install web app page"
+  },
+  "installPageSeparateProfiles": {
+    "message": "由于存在于一个很难修复的问题，强烈建议为每个网页应用使用单独的配置文件中。请参阅问题报告<a id=\"web-app-profile-warn-issue\"></a>以了解详情。",
+    "description": "The message that tells users each web app should be in a separate profile on affected platforms"
+  },
+  "installPageLaunchNowLabel": {
+    "message": "安装完成后启动网页应用",
+    "description": "The label for the launch now checkbox on the web app installation page"
+  },
+  "installPageLaunchNowTooltip": {
+    "message": "如果您想要在安装后自动启动此网页应用，请启用",
+    "description": "The tooltip for the launch now checkbox on the web app installation page"
+  },
+  "installPageContentScriptError": {
+    "message": "无法访问内容脚本。",
+    "description": "A message that says the extension was not able to access the content script"
+  },
+  "launchPageTitle": {
+    "message": "启动此网页应用",
+    "description": "The title of the launch web app page"
+  },
+  "launchPageInstallNewInstance": {
+    "message": "安装新的实例",
+    "description": "Displayed on the launch web app page to install a new instance"
+  },
+  "managePageTitle": {
+    "message": "管理网页应用和配置文件",
+    "description": "The title of the manage page"
+  },
+  "managePageTabApps": {
+    "message": "应用程序",
+    "description": "The apps tab on the manage page"
+  },
+  "managePageTabProfiles": {
+    "message": "配置文件",
+    "description": "The profiles tab on the manage page"
+  },
+  "managePageTabSettings": {
+    "message": "设置",
+    "description": "The settings tab on the manage page"
+  },
+  "managePageAppListIcon": {
+    "message": "图标",
+    "description": "The icon alternative text on the web app list"
+  },
+  "managePageAppListLaunch": {
+    "message": "启动网页应用",
+    "description": "The launch tooltip on the web app list"
+  },
+  "managePageAppListEdit": {
+    "message": "编辑网页应用",
+    "description": "The edit tooltip on the web app list and the title of the edit web app dialog"
+  },
+  "managePageAppListRemove": {
+    "message": "移除网页应用",
+    "description": "The remove tooltip on the web app list and the title of the remove web app dialog"
+  },
+  "managePageAppListEmpty": {
+    "message": "没有已安装的网页应用！",
+    "description": "A message that is displayed on the web app list when no web apps are installed"
+  },
+  "managePageAppListAdd": {
+    "message": "安装当前网站",
+    "description": "A button that is displayed on the web app list to install the current site"
+  },
+  "managePageProfileListCreate": {
+    "message": "创建配置文件",
+    "description": "The create tooltip on the profile list and the title of the edit profile dialog"
+  },
+  "managePageProfileListEdit": {
+    "message": "编辑配置文件",
+    "description": "The edit tooltip on the profile list and the title of the edit profile dialog"
+  },
+  "managePageProfileListRemove": {
+    "message": "移除配置文件",
+    "description": "The remove tooltip on the profile list and title of the remove profile dialog"
+  },
+  "managePageProfileListEmpty": {
+    "message": "没有可用的配置文件！",
+    "description": "A message that is displayed on the profile list when no profile are available"
+  },
+  "managePageProfileListAdd": {
+    "message": "创建新的配置文件",
+    "description": "A button that is displayed on the profile list to create a new profile"
+  },
+  "managePageProfileListUnnamed": {
+    "message": "未命名",
+    "description": "The unnamed profile on the profile list"
+  },
+  "managePageSettingsDisplayPageAction": {
+    "message": "显示地址栏部件",
+    "description": "The setting for displaying page action (address bar widget)"
+  },
+  "managePageSettingsDisplayPageActionValid": {
+    "message": "在有效的渐进网页应用程序上",
+    "description": "The option to display page action on valid web apps"
+  },
+  "managePageSettingsDisplayPageActionAlways": {
+    "message": "总是",
+    "description": "The option to always display page action"
+  },
+  "managePageSettingsDisplayPageActionNever": {
+    "message": "从不",
+    "description": "The option to never display page action"
+  },
+  "managePageSettingsShowUpdatePopup": {
+    "message": "在扩展更新时显示弹窗",
+    "description": "The setting for showing update popups"
+  },
+  "managePageSettingsEnableAutoLaunch": {
+    "message": "启用自动启动网页应用",
+    "description": "The setting for enabling automatic launching"
+  },
+  "managePageSettingsAlwaysPatch": {
+    "message": "总是修补运行环境和配置文件",
+    "description": "The setting for configuring patching"
+  },
+  "managePageSettingsDarkMode": {
+    "message": "启用深色模式",
+    "description": "The setting for enabling dark mode"
+  },
+  "managePageSettingsDarkModeTooltip": {
+    "message": "只能在系统设置中启用",
+    "description": "The tooltip for the dark mode setting"
+  },
+  "managePageSettingsDefaultProfileTemplate": {
+    "message": "默认配置文件模板",
+    "description": "The setting for default profile template"
+  },
+  "managePageSettingsLanguage": {
+    "message": "语言",
+    "description": "The setting for language"
+  },
+  "managePageSettingsUpdateWebApps": {
+    "message": "更新网页应用",
+    "description": "The button in settings to update web apps"
+  },
+  "managePageSettingsPatchProfiles": {
+    "message": "修补配置文件和运行环境",
+    "description": "The button in settings to patch profiles and runtime"
+  },
+  "managePageSettingsReinstallRuntime": {
+    "message": "重新安装运行环境",
+    "description": "The button in settings to reinstall runtime"
+  },
+  "managePageSettingsAboutProject": {
+    "message": "关于此项目",
+    "description": "The button in settings to display project info"
+  },
+  "managePageFooterOutdated1": {
+    "message": "扩展已经过期！",
+    "description": "The first part of the extension outdated warning"
+  },
+  "managePageFooterOutdated2": {
+    "message": "请更新！",
+    "description": "The second part of the extension outdated warning"
+  },
+  "managePageFooterSearchPlaceholder": {
+    "message": "按名称搜索",
+    "description": "The search placeholder for web apps and profiles"
+  },
+  "managePageAppEditLaunchOnWebsiteLabel": {
+    "message": "在匹配的网站上启动相应网页应用",
+    "description": "The label for the launch on website checkbox on the edit web app dialog"
+  },
+  "managePageAutoLaunchEnable": {
+    "message": "启用",
+    "description": "The enable button for the automatic launching"
+  },
+  "buttonRuntimeInstallDefault": {
+    "message": "安装运行环境",
+    "description": "The runtime installation button on the setup page, allowing the user to install the runtime"
+  },
+  "buttonRuntimeInstallProcessing": {
+    "message": "正在安装运行环境…",
+    "description": "The runtime installation button on the setup page, while the runtime is installing"
+  },
+  "buttonRuntimeInstallFinished": {
+    "message": "运行环境已安装！",
+    "description": "The runtime installation button on the setup page, after the runtime has been installed"
+  },
+  "buttonWebAppInstallDefault": {
+    "message": "安装网页应用",
+    "description": "The web app button on the install web app page, allowing the user to install the web app"
+  },
+  "buttonWebAppInstallProcessing": {
+    "message": "正在安装网页应用…",
+    "description": "The web app installation button on the install web app page, while the web app is installing"
+  },
+  "buttonWebAppInstallFinished": {
+    "message": "网页应用已安装！",
+    "description": "The web app installation button on the install web app page, after the web app has been installed"
+  },
+  "buttonCreateDefault": {
+    "message": "创建",
+    "description": "The create button, allowing the user to create something (profile)"
+  },
+  "buttonCreateProcessing": {
+    "message": "正在创建…",
+    "description": "The create button, while something (profile) is being created"
+  },
+  "buttonCreateFinished": {
+    "message": "创建成功！",
+    "description": "The create button, after something (profile) has been created"
+  },
+  "buttonEditDefault": {
+    "message": "应用",
+    "description": "The edit button, allowing the user to edit something (web app or profile)"
+  },
+  "buttonEditProcessing": {
+    "message": "保存中…",
+    "description": "The edit button, while something (web app or profile) is being edited"
+  },
+  "buttonEditFinished": {
+    "message": "已保存！",
+    "description": "The edit button, after something (web app or profile) has been edited"
+  },
+  "buttonRemoveDefault": {
+    "message": "移除",
+    "description": "The remove button, allowing the user to remove something (web app or profile)"
+  },
+  "buttonRemoveProcessing": {
+    "message": "移除中…",
+    "description": "The remove button, while something (web app or profile) is being removed"
+  },
+  "buttonRemoveFinished": {
+    "message": "已移除！",
+    "description": "The remove button, after something (web app or profile) has been removed"
+  },
+  "buttonUpdateDefault": {
+    "message": "更新",
+    "description": "The update button, allowing the user to update something (all web apps)"
+  },
+  "buttonUpdateProcessing": {
+    "message": "更新中…",
+    "description": "The update button, while something (all web apps) is being updated"
+  },
+  "buttonUpdateFinished": {
+    "message": "已更新！",
+    "description": "The update button, after something (all web apps) has been updated"
+  },
+  "buttonPatchDefault": {
+    "message": "修补",
+    "description": "The patch button, allowing the user to patch something (all web apps or profiles)"
+  },
+  "buttonPatchProcessing": {
+    "message": "修补中…",
+    "description": "The patch button, while something (all web apps or profiles) is being patched"
+  },
+  "buttonPatchFinished": {
+    "message": "已修补！",
+    "description": "The patch button, after something (all web apps or profiles) has been patched"
+  },
+  "buttonReinstallDefault": {
+    "message": "重新安装",
+    "description": "The reinstall button, allowing the user to reinstall something (runtime)"
+  },
+  "buttonReinstallProcessing": {
+    "message": "重新安装中…",
+    "description": "The reinstall button, while something (runtime) is being reinstalled"
+  },
+  "buttonReinstallFinished": {
+    "message": "已重新安装！",
+    "description": "The reinstall button, after something (runtime) has been reinstalled"
+  }
+}