Browser news — Web Standards

August 18
Firefox 154 release notes for developers
sibling-index(), text-box-trim, four new Iterator methods, and unprefixed line-clamp behind a flag.
August 14
Progressive Web Apps – mostly – rock
What already beats native apps, and what iOS and install prompts still get wrong.
July 29
What’s new in Chrome 151
Media capture element, declarative slot assignment, and soft-navigation metrics.
July 28
WebKit features for Safari 26.6
JS String Builtins in streaming WebAssembly compilation, plus eight bug fixes.
July 27
Cross-Origin Storage API: stop downloading twice
A proposed API to store big files by hash and share them across origins.
July 22
Firefox 153 release notes for developers
Intl.Locale info methods, IndexedDB getAllRecords(), source phase imports, and WebAssembly JSPI.
July 14
In defense of polyfills
Why fallback code helps the web while the standards process catches up.
July 8
Introducing Baseline Alerts
Subscribe to notifications when web features change status across browsers.
July 3
Introducing the Safari MCP server for web developers
Let AI agents see how your code actually renders in Safari, all running locally.
July 2
What’s new in Chrome 150
System accent colors, polygon rounding, animatable zoom, url() modifiers, and text-fit.
June 17
Firefox 152 release notes for developers
field-sizing for form controls, Notification actions, and pointer lock unadjustedMovement.
June 12
Web technology sessions at WWDC26
Six WebKit sessions on Safari 27, grid lanes, customizable <select>, <model> element, and extensions.