Note that the Animation inspector's UI was revamped in Firefox 43. To see what the Animation inspector looks like in Firefox 43 and subsequent releases, see the main "Work with animations" page.
In Firefox 41 and 42, the Animation inspector enables you to:
- see information about all animations running in the page
- play/pause all animations
- play/pause/rewind/fast-forward each animation (new in Firefox 39)
- jump to a specific point in an animation (new in Firefox 39)
- highlight and inspect the animated node (new in Firefox 40)
- adjust the playback rate of each animation (new in Firefox 40)
- see whether an animation is running in the compositor thread (a lightning bolt icon is displayed next to such animations) (new in Firefox 41)