







Manifest-declared protocol handlers just landed (behind a flag) in Chrome 146 🎉 This is how ipfs:// or atproto:// can become first-class citizens of the browser! The web that's coming is built on keys, hashes, and verifiable data. Browsers need to meet it there. ipfsfoundation.org/protocol-handler-registration…
Protocol Handler Registration in Chrome 146 and the Browser as OS
ipfsfoundation.orgApr 20, 2026 at 6:22 PM
New Custom Handlers component for Chrome – make everything intensely
The HTML Standard section on Custom Handlers describes the procedure to register custom protocol handlers for URLs with specific schemes. When a URL is followed, the protocol dictates which part of the system handles it by consulting registries. In some cases, handlers may fall to the OS level and and launch a desktop application (eg. mailto:// may launch a native application) or, the browser may redirect the request to a different HTTP(S) URL (eg. mailto:// can go to gmail).
Browsers & Standards Work 2026: Call for Community Input
TL;DR: IPFS is planning the next phase of work to make browsers better for the decentralized web – not just IPFS, but any protocol that needs lightweight crypto, peer-to-peer connections, or native browser integration. We need your input on what features matters most. Background: What We’ve Accomplished Over the past 5 years, sustained collaboration with Igalia has delivered real improvements to all major browsers: Ed25519 in WebCrypto API - Shipped in Chrome 137 (May 2025), now available in...

AT Protocol Handler - Chrome Web Store
AT Protocol utilities: handle tools, post filtering, PDS info.
Project: IPFS Chromium implementation | Little Bear Labs | Little Bear Labs
Faster, more secure, more accessible IPFS links in Chromium-based browsers.

#protocolsforpublishers #atproto #mcp #webapplets | Chad Kohalyk
Web publishing is facing its next challenge: a new iteration of centralizing platforms. BUT there is also a new wave of open protocols and standards that can help us gain our independence. Next month in NYC we are gathering a group of frontier technologists and popular web publishers to discuss how we can sail into this next platform shift as captains. #ProtocolsForPublishers Learn more and sign up here: https://pfp.unternet.co We will be hosting talks on #atproto #mcp #webapplets and web payments, and give publishers the opportunity to interact directly with developers working on these frontier technologies. Thank you to Unternet, Graze Social, Free our Feeds, and betaworks for their support.
Signed/Bundled HTTP Exchanges and WebPackage · Issue #121 · ipfs/in-web-browsers
This issue tracks ideas, use cases and work related to Web Packaging, especially Signed HTTP Exchanges (SXGs) and Bundled HTTP Exchanges which open the door to associating an origin with content th...
Protocol Handler Registration via Browser Extensions – make everything intensely
Custom URL schemes have traditionally served as an integration bridge between the browser and external capabilities. Schemes such as mailto: and tel: allow navigation to trigger actions beyond ordinary HTTP resource retrieval. The HTML Standard formalizes this mechanism through the Custom Scheme Handlers API, which enables websites to register themselves as handlers for specific URL schemes.
/beaver/patches/components/net/protocols/atproto at main · me.webbeef.org/beaver
Rewild Your Web
AT Protocol Handler – Get this Extension for 🦊 Firefox (en-US)
Download AT Protocol Handler for Firefox. AT Protocol Handler This extension lets you handle and open at:// URLs seamlessly in your browser by listing compatible sites. Originally developed for Chrome, this version supports Firefox with full protocol handler integration.

AT Protocol Handler – Get this Extension for 🦊 Firefox (en-US)
Download AT Protocol Handler for Firefox. AT Protocol Handler This extension lets you handle and open at:// URLs seamlessly in your browser by listing compatible sites. Originally developed for Chrome, this version supports Firefox with full protocol handler integration.

Building a Browser-Native Verification Stack for Tinfoil
Learn how we built a browser-based confidentiality and integrity verifier with implementations of browser-native Sigstore and TUF libraries.

index.html · by atprotofans.com
An browser-side ATProtocol OAuth application with no dependencies that verifies supporters
Important piece of multi-protocol support in browsers! Thanks to much work from Javi, and funding from @ipfs.tech. HEY NOW, settle down - a ways to go: - can only redirect to URLs/paths - no Safari - off by default in Chrome (for now) - only allow-listed schemes unprefixed Step by step...
Javier Fernandez
Blog post about a new Chromium feature I've been working on to allow Web Extensions register protocol handlers just declaring them in the Manifest. blogs.igalia.com/jfernandez/2026/03/24/protoco…
Oh yeah — Ed25519 is now available in Chrome! Read what the ineffable @bumblefudge.com has to say about this wonderful piece of news. ipfsfoundation.org/ed25519-support-in-chrome-mak…
Ed25519 Support in Chrome: Making the Web Faster and Safer
ipfsfoundation.orgcorkiejp.github.io/ATProtocolHandler/index.html Features:- AT Protocol utilities: handle tools, post filtering, PDS info. Stores:- chromewebstore.google.com/detail/foippfcmhngnjdlfhgaifp… | addons.mozilla.org/en-US/firefox/addon/at-protoc… github.com/corkiejp/corkiejp.github.io/t… Supported clients: - 'wsocial.eu', 'bsky.app', 'mu.social', 'deer.social', 'blacksky.community', 'northsky.app' bsky.app/profile/did:plc:qxlh6bohvep3t…