ページアクション (en-US) は、ブラウザーのアドレスバーの中のクリックできるアイコンです。

You can listen for clicks on the icon, or specify a popup (en-US) that will open when the icon is clicked.

If you specify a popup, you can define its contents and behavior using HTML, CSS, and JavaScript, just like a normal web page. JavaScript running in the popup gets access to all the same WebExtension APIs as your background scripts.

You can define most of a page action's properties declaratively using the page_action key in your manifest.json, but can also redefine them programmatically using this API.

Page actions are for actions that are only relevant to particular pages. If your icon should always be available, use a browser action (en-US) instead.

pageAction.ImageDataType (en-US)

Pixel data for an image.

関数 (en-US)

Shows the page action for a given tab.

pageAction.hide() (en-US)

Hides the page action for a given tab.

pageAction.setTitle() (en-US)

Sets the page action's title. This is displayed in a tooltip over the page action.

pageAction.getTitle() (en-US)

Gets the page action's title.

pageAction.setIcon() (en-US)

Sets the page action's icon.

pageAction.setPopup() (en-US)

Sets the URL for the page action's popup.

pageAction.getPopup() (en-US)

Gets the URL for the page action's popup.

pageAction.openPopup() (en-US)

Opens the page action's popup.



Fired when a page action icon is clicked. This event will not fire if the page action has a popup.


BCD tables only load in the browser

Example extensions

メモ: This API is based on Chromium's chrome.pageAction API. This documentation is derived from page_action.json in the Chromium code.Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.