I don't think I fully understand, but superficially I like where your questions may lead. I really like the idea of decoupling data from application. IMAP mail

I don't think I fully understand, but superficially I like where your questions may lead. I really like the idea of decoupling data from application. IMAP mail storage, for example, decouples your mail folders and messages from whatever client you use, or whether you're using a work computer at work or a laptop at home or a phone wherever. Databases are essentially the same thing, for more general data. So why not tabs, or bookmarks for that matter. I think you have a sweet project in front of you, if you're in to it. Start small, if you start, but think big while you're small. Side note, I've often thought about similar things, and thought about using IMAP as a ready made decoupled database. Unfortunately you'd have to implement your "schema" through convention in your folders/messages/data. But most people have an IMAP account these days. Finally, there are a few things that may help in your problem, although they are far from what you describe. One, Firefox has a "group your tabs" feature, where you can do what it says, and easily move between groups. But it's only a local feature in your browser. https://support.mozilla.org/en-US/kb/tab-groups-organize-tabs?redirectlocale=en-US&redirectslug=what-are-tab-groups https://support.mozilla.org/en-US/kb/tab-groups-organize-tab... I've been using pinboard for years, it's your bookmarks in the cloud. You can tag any bookmark with any number of tags, and any combination of tags can have an RSS feed. This is how I have convenient access to my bookmarks at home and at work. For your purposes, you might tag a page/tab, and untag it when you're done with it, then use the associated RSS feed to view what's currently associated with that tag(s). Finally, when all is lost, the Firefox addon OneTab allows you to easily declare tab bankruptcy, taking all your open tabs and placing them on a list on a page, then closing the tabs. https://addons.mozilla.org/en-US/firefox/addon/onetab/ https://addons.mozilla.org/en-US/firefox/addon/onetab/ Ah, their home page says it's also available for Chrome. http://www.one-tab.com/ http://www.one-tab.com/