Warn users when adding a duplicate bookmark. This would show them where that link already exists, saving time from duplicate cleanup later on.

Its great update. I've been using raindrop.io since the first launch !!!

This feature request about notes attached to bookmarks only! Be sure that I'm not talking about separate notes. I do not plan to compete with note taking apps. There so many great ones already. I don't want to invest so much time to compete with them. I don't want to shift focus from main thing - bookmarks. Good products make one thing, but do it great.

Maybe another right click option like 'Save screenshot to Raindrop.io ' with options to save the full page, the visible area or the one I would use the most - save selection where you can select the area on the page you'd like to save. The new built-in Firefox 'Take a screenshot' has great functionality for reference. This feature would be really helpful for bookmarking favourite UI component designs and I imagine would be a big draw for designers out there

There are many people, like me, who prefer not to be on a monthly / annual subscription, but pay once for life. So a kind of lifetime license for pro versions.

Like "Smart playlists" in iTunes. You create conditions (topic, title/description/text contains string, multiple tags, type, date..etc...) and all bookmarks automatically puts to specified collection.

In this time, I am on the horns of a dilemma cause I want to add my bookmarks into multiple collections without duplicate them. I'd like that feature as soon as possible =)

Multi Authentication with Google Authenticator to safely access public PCs too because even if a public PC is infected with virus, they wont be able to login into account unless they type in 2nd authenticator access code.

parent & children tags to form a more useful taxonomy

Reminders for saved items.