Firefox 150 release notes for developers
New CSS features, media pseudo-classes, animation range, and ariaNotify().
Firefox news — Page 2
Firefox 149 release notes for developers
Popover hint,
CloseWatcher,shape-outside: xywh(), and more CSS and API updates.
Making WebAssembly a first-class language on the web
Component model could remove JS glue, simplify loading, and speed up web API access.
Firefox 148 release notes for developers
HTML sanitizer, Trusted Types, CSS
shape(), and more.
Firefox 147 release notes for developers
CSS anchor positioning, Navigation API, WebGPU on Apple Silicon, and DevTools improvements.
Firefox 146 release notes for developers
CSS and MathML improvements plus new APIs and Navigation API preview.
Firefox 145 release notes for developers
New CSS, JS and media features plus experimental security and layout APIs.
What’s new in Firefox 144 for developers
View Transitions in SPAs, command/commandfor attributes, getOrInsert(), and moveBefore().
What’s new in Firefox 143 for developers
New color formats in color input, ::details-content, ::before::marker, and grid improvements.