Firefox 149 release notes for developers. The release adds the popover="hint" value, CloseWatcher for custom closeable components, shape-outside support for xywh(), vertical-align as a shorthand property, optional @​container query conditions, HTMLSelectElement.showPicker() for <datalist> elements, and HTMLMediaElement.captureStream(). #firefox #browser

https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/149