@webdevs.firefox.com on Bluesky

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Firefox for Web Developers

webdevs.firefox.com

did:plc:6jsvyhtxrkb4d2wrlwd2avmm

Major versions of Firefox now land every two weeks, so Firefox 155 dropped today with web platform features including: 🎉 Fully typed CSS attr() 🎉 CSS progress() 🎉 Promise.allKeyed() and allSettledKeyed() 🎉 Lots of new WebTransport stuff …And more! https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/155

2026-09-01T13:15:09.208Z