Glasp for Firefox

The MCP connector is the part I want to dig into. When Claude queries Glasp through MCP, does it get access to all highlights across every source, or can you scope the context to a specific tag or date range? I tag things heavily by project, and for agent workflows the difference between all 5,000 saved clips and just the 40 tagged for a current research thread matters a lot.

Congrats on the Firefox launch. Since Glasp bills itself as a social highlighter, I'm curious how the default privacy works in practice - if I highlight a paragraph on a public article, is that highlight private to me by default, or is there a layer where other Glasp users browsing the same page can see what I marked up unless I opt out? That distinction matters a lot for how comfortable people are highlighting sensitive or work-related reading.

Love this launch and the direction you’re taking Glasp.Bringing Firefox into the ecosystem feels like more than “just another browser support” — a lot of power users, researchers, and knowledge workers live there, so it’s a strong signal you’re serious about serving that audience deeply.A few things stand out to me as a maker:- Cross-browser continuity: The “nothing to migrate, everything just appears” detail is huge. Most tools underestimate how much friction syncing and setup create. You’re leaning into an “it just works” experience across Chrome / Firefox / web / mobile.- AI tightly woven into the workflow: Summarizing pages, PDFs, and YouTube directly in-tab with multiple models (ChatGPT, Claude, Gemini) is a smart move. Instead of building “yet another AI wrapper,” you’re meeting people where they’re already reading and thinking.- Treating highlights as a long-term asset: The export options (Notion, Obsidian, Markdown, CSV, API) show you respect that users own their knowledge. That’s how you earn trust over time.- Philosophy behind the product: The story about wanting to leave a meaningful legacy and turning that into “Greatest Legacy Accumulated as Shared Proof” gives Glasp a clear north star. It’s rare to see a highlight tool with such an explicit human motivation behind it.Curious about two things from a product perspective:1. How you’re thinking about surfacing past highlights at the right moment (beyond search and daily reviews) so the knowledge actually compounds.2. How the AI Clone evolves over time as people highlight across very different domains (e.g., technical papers + philosophy + business blogs).Big congrats on the Firefox release — excited to see how you expand into mobile Firefox and deepen the AI features next.

I like such new things that are coming for my lovely Browser! Thanks, Guy!

Congratulations on the launch! Is it kind of like browser bookmarks, but more convenient and modern, with AI?

Congratulations! It's nice to see Firefox supported :) How do daily highlights resurface things: by relevance, randomly, in some other way?

Making knowledge easier to capture is one thing, but making it searchable and useful later is the real value. Great to see Glasp finally available for Firefox users. Congrats on the launch!

📌 Hi Product Hunt 👋

Glasp cofounder here!

🚀 Today, we're launching Glasp for Firefox 🙌

🦊 Glasp on Firefox
Firefox was the browser people asked us for most, and it is finally here.

Highlight text and images on any web page in four colors. Highlight and annotate PDFs. Highlight YouTube transcripts. Add notes and tags as you read, and summarize any page or video with ChatGPT, Claude, or Gemini without leaving the tab.

Everything you save goes into one searchable library, and it comes back out whenever you want: Notion, Obsidian, plain Markdown, CSV, or through our API.

If you already use Glasp somewhere else, there is nothing to migrate. Sign in with the same account and your existing highlights are already there, and anything you highlight in Firefox shows up in your other browsers, the web app, and the mobile apps.

🕰️ Story behind Glasp
10 years ago, Kazuki, the co-founder of Glasp, was diagnosed with a subdural hematoma that suddenly paralyzed the left side of his body, and his doctor told him that he could go into cardiopulmonary arrest at any moment. He managed to survive through emergency surgery, but when he was confronted with the reality that he might disappear from this world, he remembers feeling an inexpressible sense of fear and frustration welling up from the bottom of his body.

At the same time, he was struck by the desire to prove that he existed in this world and that his life had meaning, and the urge to leave something useful behind for the world while he was still alive to feel a sense of contribution to humanity.

📚What is Glasp?
Glasp is a social web highlighter that people can use to highlight and organize quotes and thoughts from the web without switching back and forth between screens and accessing other like-minded people's learning simultaneously.

Our mission is to democratize access to other people's learning and experiences that they have collected throughout their lives as a utilitarian legacy. As Glasp stands for "Greatest Legacy Accumulated as Shared Proof", we want to visualize your contribution to human knowledge history.

Besides Firefox support:

✅ Talk with your AI Clone built from your highlights and notes 🧠
✅ Sync all your highlights and notes from Kindle eBooks: 📚
✅ Get daily highlight reviews for free!
✅ Highlight and summarize YouTube videos, web pages, and PDF files!
✅ Highlight & annotate PDF files ✍️
✅ Transcribe, summarize, and highlight audio files 🎧
✅ Connect Glasp to Claude and ChatGPT with our MCP Connector 🔌
✅ Discover more useful content from other curators: 🤝

... and many more!

We're excited for the Product Hunt community to check it out and would love to get any feedback to improve Glasp!

🧭 What's Coming Up Next:
- Feature parity for the newest AI features
- Firefox mobile support
- Faster PDF highlighting on large files
- Improved UX = UI updates + bug fix

Let's highlight the world's information and make it universally accessible and useful together!

Happy learning,
Kei