Firefox 144 brings same-document view transitions to Baseline
With the release of Firefox 144, same-document view transitions and several related features are now Baseline Newly available. This marks an important interoperability milestone for the View Transition API, which is one of the Interop 2025 focus areas.
Firefox 144 adds support for the core building blocks of same-document view transitions, including document.startViewTransition(updateCallback) and the view-transition-name CSS property. These allow you to create animated transitions between visual states within a single page, rather than only across full document navigations.
The release also ships with three supporting features that expand what you can do with view transitions:
view-transition-class– lets you target a group of snapshot elements with a single CSS rule instead of listing each one individually.view-transition-name: match-element– automatically generates snapshot names for elements rather than requiring you to assign them manually.:active-view-transition– a selector that applies page-level styles only while a view transition is currently running.
These features give developers more control over how transitions are styled and triggered. The :active-view-transition selector, for instance, is useful for altering the page appearance during a transition—such as changing the background color behind the snapshots—without affecting the page in its resting state.
For practical guidance on getting started, refer to the following resources:
