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chrome.notifications | API | Chrome for Developers

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Use the chrome.notifications API to create rich notifications using templates and show these notifications to users in the system tray.

notifications

• Deprecated since Chrome 59

  Button icons not visible for Mac OS X users.

• Additional details about this item.

• Title of one item of a list notification.

• appIconMaskUrl

  string optional

  Deprecated since Chrome 59

  The app icon mask is not visible for Mac OS X users.

  A URL to the app icon mask. URLs have the same restrictions as iconUrl.

  The app icon mask should be in alpha channel, as only the alpha channel of the image will be considered.

• Text and icons for up to two notification action buttons.

• contextMessage

  string optional

  Alternate notification content with a lower-weight font.

• eventTime

  number optional

  A timestamp associated with the notification, in milliseconds past the epoch (e.g. Date.now() + n).

• A URL to the sender's avatar, app icon, or a thumbnail for image notifications.

  URLs can be a data URL, a blob URL, or a URL relative to a resource within this extension's .crx file

  **Note:**This value is required for the notifications.create() method.

• Deprecated since Chrome 59

  The image is not visible for Mac OS X users.

  A URL to the image thumbnail for image-type notifications. URLs have the same restrictions as iconUrl.

• isClickable

  boolean optional

  Deprecated since Chrome 67

  This UI hint is ignored as of Chrome 67

• Items for multi-item notifications. Users on Mac OS X only see the first item.

• Main notification content.

  **Note:**This value is required for the notifications.create() method.

• Priority ranges from -2 to 2. -2 is lowest priority. 2 is highest. Zero is default. On platforms that don't support a notification center (Windows, Linux & Mac), -2 and -1 result in an error as notifications with those priorities will not be shown at all.

• Current progress ranges from 0 to 100.

• requireInteraction

  boolean optional

  Indicates that the notification should remain visible on screen until the user activates or dismisses the notification. This defaults to false.

• Indicates that no sounds or vibrations should be made when the notification is being shown. This defaults to false.

• Title of the notification (e.g. sender name for email).

  **Note:**This value is required for the notifications.create() method.

• Which type of notification to display. Required for notifications.create method.

"granted"
Specifies that the user has elected to show notifications from the app or extension. This is the default at install time.

"basic"
Contains an icon, title, message, expandedMessage, and up to two buttons.

chrome.notifications.clear(
  notificationId: string,
): Promise<boolean>

Clears the specified notification.

• The id of the notification to be cleared. This is returned by notifications.create method.

chrome.notifications.create(
  notificationId?: string,
  options: NotificationOptions,
): Promise<string>

Creates and displays a notification.

• notificationId

  string optional

  Identifier of the notification. If not set or empty, an ID will automatically be generated. If it matches an existing notification, this method first clears that notification before proceeding with the create operation. The identifier may not be longer than 500 characters.

  The notificationId parameter is required before Chrome 42.

• Contents of the notification.

chrome.notifications.getAll(): Promise<object>

Retrieves all the notifications of this app or extension.

chrome.notifications.getPermissionLevel(): Promise<PermissionLevel>

Retrieves whether the user has enabled notifications from this app or extension.

chrome.notifications.update(
  notificationId: string,
  options: NotificationOptions,
): Promise<boolean>

Updates an existing notification.

• The id of the notification to be updated. This is returned by notifications.create method.

• Contents of the notification to update to.

chrome.notifications.onButtonClicked.addListener(
  callback: function,
)

The user pressed a button in the notification.

• The callback parameter looks like:

  (notificationId: string, buttonIndex: number) => void

chrome.notifications.onClicked.addListener(
  callback: function,
)

The user clicked in a non-button area of the notification.

• The callback parameter looks like:

  (notificationId: string) => void

chrome.notifications.onClosed.addListener(
  callback: function,
)

The notification closed, either by the system or by user action.

• The callback parameter looks like:

  (notificationId: string, byUser: boolean) => void

chrome.notifications.onPermissionLevelChanged.addListener(
  callback: function,
)

The user changes the permission level. As of Chrome 47, only ChromeOS has UI that dispatches this event.

• The callback parameter looks like:

  (level: PermissionLevel) => void

Deprecated since Chrome 65

chrome.notifications.onShowSettings.addListener(
  callback: function,
)

Custom notification settings button is no longer supported.

The user clicked on a link for the app's notification settings. As of Chrome 47, only ChromeOS has UI that dispatches this event. As of Chrome 65, that UI has been removed from ChromeOS, too.

• The callback parameter looks like:

  () => void

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-11 UTC.

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