The bookmarks.BookmarkTreeNodeUnmodifiable type is used to indicate the reason that a node in the bookmark tree (where each node is either a bookmark or a bookmark folder) cannot be changed. This is used as the value of the bookmarks.BookmarkTreeNode.unmodifiable.unmodifiable field on bookmark nodes.


bookmarks.BookmarkTreeNodeUnmodifiable is a string which can currently have only one value: "managed". This indicates that the bookmark node was configured by an administrator or by the custodian of a supervised user (such as a parent, in the case of parental controls).

Browser compatibility

Chrome Edge Firefox Firefox for Android Opera
Basic Support Yes No 45.0 No 33


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

Document Tags and Contributors

 Contributors to this page: Sheppy, wbamberg
 Last updated by: Sheppy,