runtime

该模块提供关于附加组件以及运行环境的信息。

它提供一组消息通信API，允许你：

• 在附加组件的不同模块间通信。
• 和其它的附加组件通信。
• 和native应用通信。

Types

runtime.Port

表示两个特定上下文之间的连接的一端，可用于交换消息。

runtime.MessageSender

包含有关消息或连接请求的发件人的信息。

runtime.PlatformOs

标识浏览器的操作系统。

runtime.PlatformArch

标识浏览器的处理器架构。

runtime.PlatformInfo

包含有关浏览器正在运行的平台的信息。

runtime.RequestUpdateCheckStatus

runtime.requestUpdateCheck() 的返回结果。

runtime.OnInstalledReason

runtime.onInstalled 事件被触发的原因。

runtime.OnRestartRequiredReason

runtime.onRestartRequired 事件被触发的原因。

Properties

runtime.lastError

当异步方法执行时发生了错误，它需要向其调用方报告时，该值会被设置。

runtime.id

当前扩展的ID。

Functions

runtime.getBackgroundPage()

Retrieves the Window object for the background page running inside the current add-on.

runtime.openOptionsPage()

Opens your add-ons's options page.

runtime.getManifest()

Gets the complete manifest.json file, serialized as an object.

runtime.getURL()

Given a relative path from the manifest.json to a resource packaged with the add-on, returns a fully-qualified URL.

runtime.setUninstallURL()

Sets a URL to be visited when the add-on is uninstalled.

runtime.reload()

Reloads the add-on.

runtime.requestUpdateCheck()

Checks for updates to this add-on.

runtime.connect()

Establishes a connection from a content script to the main add-on process, or from one add-on to a different add-on.

runtime.connectNative()

Connects the WebExtension to a native application on the user's computer.

runtime.sendMessage()

Sends a single message to event listeners within your add-on or a different add-on. Similar to runtime.connect but only sends a single message, with an optional response.

runtime.sendNativeMessage()

Sends a single message from a WebExtension to a native application.

runtime.getPlatformInfo()

Returns information about the current platform.

runtime.getBrowserInfo()

Returns information about the browser in which this add-on is installed.

runtime.getPackageDirectoryEntry()

Returns a DirectoryEntry for the package directory.

Events

runtime.onStartup

Fired when a profile that has this add-on installed first starts up. This event is not fired when an incognito profile is started.

runtime.onInstalled

Fired when the add-on is first installed, when the add-on is updated to a new version, and when the browser is updated to a new version.

runtime.onSuspend

Sent to the event page just before the add-on is unloaded. This gives the add-on an opportunity to do some cleanup.

runtime.onSuspendCanceled

Sent after runtime.onSuspend to indicate that the add-on won't be unloaded after all.

runtime.onUpdateAvailable

Fired when an update is available, but isn't installed immediately because the add-on is currently running.

runtime.onBrowserUpdateAvailable

Fired when an update for the browser is available, but isn't installed immediately because a browser restart is required.

runtime.onConnect

Fired when a connection is made with either an add-on process or a content script.

runtime.onConnectExternal

Fired when a connection is made with another add-on.

runtime.onMessage

Fired when a message is sent from either an add-on process or a content script.

runtime.onMessageExternal

Fired when a message is sent from another add-on. Cannot be used in a content script.

runtime.onRestartRequired

Fired when the device needs to be restarted.

Browser compatibility

Example extensions

• beastify
• cookie-bg-picker
• devtools-panels
• embedded-webextension-bootstrapped
• embedded-webextension-overlay
• embedded-webextension-sdk
• export-helpers
• favourite-colour
• find-across-tabs
• imagify
• menu-demo
• mocha-client-tests
• native-messaging
• notify-link-clicks-i18n
• permissions
• proxy-blocker
• runtime-examples
• store-collected-images
• user-script
• webpack-modules

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