browserAction.setTitle() 编辑

Sets the browser action's title. The title is displayed in a tooltip over the browser action's icon. You can pass a tabId in or a windowId as an optional parameter — if you do this then the title is changed only for the given tab or the given window. Tabs or windows without a specific title will inherit the global title text, which defaults to the default_title or name specified in the manifest.

Syntax

browser.browserAction.setTitle(
  details // object
)

Parameters

details

object. The new title and optionally the ID of the tab or window to target.

title

string or null. The string the browser action should display when moused over.

If title is an empty string, the used title will be the extension name, but browserAction.getTitle will still provide the empty string.

If title is null:

• If tabId is specified, and the tab has a tab-specific title set, then the tab will inherit the title from the window to which it belongs.
• if windowId is specified, and the window has a window-specific title set, then the window will inherit the global title.
• Otherwise, the global title will be reset to the manifest title.

tabIdOptional

integer. Sets the title only for the given tab.

windowIdOptional

integer. Sets the title for the given window.

• If windowId and tabId are both supplied, the function fails and the title is not set.
• If windowId and tabId are both omitted, the global title is set.

Browser compatibility

BCD tables only load in the browser

Examples

This code switches the title between "this" and "that" each time the user clicks the browser action:

function toggleTitle(title) {
  if (title == "this") {
    browser.browserAction.setTitle({title: "that"});
  } else {
    browser.browserAction.setTitle({title: "this"});
  }
}

browser.browserAction.onClicked.addListener(() => {
  var gettingTitle = browser.browserAction.getTitle({});
  gettingTitle.then(toggleTitle);
});

Example extensions

• bookmark-it

This API is based on Chromium's chrome.browserAction API. This documentation is derived from browser_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.

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