When I installed Archiveror (Automatically archive bookmarks checkmarked by default), it didn't archive my existing bookmarks as I expected. It did archive the first bookmark I added.

I then saw "Archiving of bookmarks happens when you make a new bookmark and when you open an old bookmark." https://github.com/rahiel/archiveror . I suggest 'Automatically archive bookmarks' be either changed to automatically archive existing bookmarks, failing which the UI receive a note warning that it does not automatically archive existing bookmarks.

Workaround: click this on each bookmark folder: