If they only would improve the actual bookmark manager. It's been a thorn in my eyes for quite some time now.
- you can't find duplicates
- it takes 0.5-3sec/bookmark to delete bookmarks (on my devices at least)
- you can't cut found bookmarks out of a search (it copies it)
- the bookmark search sucks
And there are multiple other minor annoyances that bug me or features I would wish for (searchable offline bookmarks anyone? [I know that's going more in the direction search engine, but it sure as hell would be nice])
I'm kind of a horder when it comes to open tabs and bookmarks, so it is a pain in the butt to manage those. Last time I cleaned all my bookmarks I exported them and managed them with buku. "Lost" my directory structure through this but it was worth it.
For me, amongst other things, there's no easy way to e.g. share a folder of useful bookmarklets.
Or, more generally, perhaps e.g. sharing a folder of bookmarks pertaining to a research project.
P.S. Two decades ago, Kaylon's Powermarks was -- and remains -- the best bookmark manager I ever ran across. Third party app that was cross-browser and integrated itself via interfaces that gradually got killed off.
Lightning fast, handling thousands of bookmarks, with pretty good automatic, override-able tagging that fed a very effective search facility producing immediate, progressive results as one continued to type their query string.
Pretty much, you could just bookmark something, then find it a week or a month or more later with a couple of seconds' thinking and typing. Even if you had a then somewhat vague notion or memory, you usually immediately found what you half-remembered.