idOrIdList

string A string or array of strings specifying the IDs of one or more BookmarkTreeNode objects to retrieve.

A Promise that will be fulfilled with an array of BookmarkTreeNode, one for each matching node. Separators are not included in the results. If no nodes could be found, the promise will be rejected with an error message.

This example tries to get the bookmark whose ID is bookmarkAAAA. If no bookmark with this ID exists, onRejected is called:

function onFulfilled(bookmarks) {
  console.log(bookmarks);
}

function onRejected(error) {
  console.log(`An error: ${error}`);
}

let gettingBookmarks = browser.bookmarks.get("bookmarkAAAA");
gettingBookmarks.then(onFulfilled, onRejected);