Extension class

Extension represents a browser extension installed in the browser. It provides access to the extension's ID, name, and version, as well as methods for interacting with the extension's background workers and pages.

Signature

export declare abstract class Extension

Remarks

The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the Extension class.

Example

To get all extensions installed in the browser:

const extensions = await browser.extensions();
for (const [id, extension] of extensions) {
  console.log(extension.name, id);
}

Properties

Property	Modifiers	Type	Description
id	readonly	string	The unique identifier of the extension.
name	readonly	string	The name of the extension as specified in its manifest.
version	readonly	string	The version of the extension as specified in its manifest.

Methods

Method	Modifiers	Description
pages()		Returns a list of the currently active and visible pages belonging to the extension.
triggerAction(page)		Triggers the default action of the extension for a specified page. This typically simulates a user clicking the extension's action icon in the browser toolbar, potentially opening a popup or executing an action script.
workers()		Returns a list of the currently active service workers belonging to the extension.