bookmarks.update()
bookmarks.update() updates the title and/or URL of a bookmark, or the name of a bookmark folder.
Warning: If your extension attempts to update a bookmark in the bookmarks tree root node, the call will raise an error with the message: "The bookmark root cannot be modified" and the bookmark won't be updated.
This is an asynchronous function that returns a Promise.
Syntax
js
let updating = browser.bookmarks.update(
  id,                    // string
  changes                // object
)
Parameters
Return value
A Promise that will be fulfilled with a single bookmarks.BookmarkTreeNode object, representing the updated bookmark. If the bookmark item corresponding to the id parameter can't be found, the promise is rejected.
Examples
This example renames all folders named "MDN" to "Mozilla Developer Network (MDN)".
js
function onFulfilled(bookmarkItem) {
  console.log(bookmarkItem.title);
}
function onRejected(error) {
  console.error(`Error: ${error}`);
}
function updateFolders(items) {
  for (const item of items) {
    // only folders, so skip items with a `url`
    if (!item.url) {
      browser.bookmarks
        .update(item.id, {
          title: "Mozilla Developer Network (MDN)",
        })
        .then(onFulfilled, onRejected);
    }
  }
}
browser.bookmarks.search({ title: "MDN" }).then(updateFolders, onRejected);
Browser compatibility
BCD tables only load in the browser
Note: This API is based on Chromium's chrome.bookmarks API. This documentation is derived from bookmarks.json in the Chromium code.