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bookmarks.onChanged

files/en-us/mozilla/add-ons/webextensions/api/bookmarks/onchanged/index.md

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Fired when there is a change to:

  • the title or URL of a bookmark
  • the name of a folder.

Syntax

js-nolint
browser.bookmarks.onChanged.addListener(listener)
browser.bookmarks.onChanged.removeListener(listener)
browser.bookmarks.onChanged.hasListener(listener)

Events have three functions:

  • addListener(listener)
    • : Adds a listener to this event.
  • removeListener(listener)
    • : Stop listening to this event. The listener argument is the listener to remove.
  • hasListener(listener)
    • : Check whether listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

  • listener
    • : The function called when this event occurs. The function is passed these arguments:
      • id
        • : string. ID of the item that changed.
      • changeInfo
        • : object. Object containing two properties: title, a string containing the item's title, and url, a string containing the item's URL. If the item is a folder, url is omitted.

[!NOTE] Multiple events may occur when a bookmark changes, and that changeInfo object may contain only the data that has changed, rather than all the data for the bookmark. In other words, if the url for a bookmark changes, the changeInfo may only contain the new url information.

Examples

js
function handleChanged(id, changeInfo) {
  console.log(`Item: ${id} changed`);
  console.log(`Title: ${changeInfo.title}`);
  console.log(`URL: ${changeInfo.url}`);
}

function handleClick() {
  browser.bookmarks.onChanged.addListener(handleChanged);
}

browser.browserAction.onClicked.addListener(handleClick);

{{WebExtExamples}}

Browser compatibility

{{Compat}}

[!NOTE] This API is based on Chromium's chrome.bookmarks API. This documentation is derived from bookmarks.json in the Chromium code.

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