Ask HN: What is your wishlist for a new browser interface?

Browsers today are not made for the kind of browsing that I often do: playful surfing. When I say playful surfing, this XKCD strip comes to mind: https:&#x2F;&#x2F;xkcd.com&#x2F;214&#x2F;<p>I&#x27;m doing an open-ended exploration on what I&#x27;d like a new browser to look like, and the workflows&#x2F;modalities I want it to unlock.<p>Pain points:<p>- Navigating a flat list of tabs feels like a chore<p>- Tab search only indexes title&#x2F;url, not the content - If I have 50 tabs opened, currently on tab 35, and remember a vague term I read in one of the 34 tabs before – How do I trace my way back to it?<p>- Bookmarking should be tag based, not folder based<p>- History is siloed<p>My wishlist:<p>- Tree-style tabs sidebar (like the Firefox add-on)<p>- Full-text search over open tabs with ability to narrow down on specific sub-trees<p>- Interaction-aware search ranking. For instance, if you scroll 60% of the way through on one tab and then search for a term that existed at the 55% mark on that tab, it should be show up first.<p>- Tag based bookmarking<p>- Built-in annotation tools &amp; Google-docs style collaborative marginalia<p>- Timeline-based history (Inspired by https:&#x2F;&#x2F;maggieappleton.com&#x2F;historical-trails)<p>- Bring your own sync server &#x2F; self-hostable sync server<p>- Everything gets saved to a SQLite database, so you can plug it into your own home-made tools<p>What features would you like to see in a new browser (interface)? What workflows would you want it to unlock?