GIF and WebP play back at inconsistent speed (slow motion with normal speed intermittently)
It looks like the affected files predominantly animate in slowmotion with it intermittently speeding up to the intended animation speed as I rapidly mouse over UI elements in the browser (bookmarks, tabs, address bar etc) or click and slide a tab around the Tab Bar (resuming slow motion if I pause moving the tab without releasing the mouse button or release the mouse button).
Latest stable Firefox Windows 10 22H2
It looks like the affected files predominantly animate in slowmotion with it intermittently speeding up to the intended animation speed as I rapidly mouse over UI elements in the browser (bookmarks, tabs, address bar etc) or click and slide a tab around the Tab Bar (resuming slow motion if I pause moving the tab without releasing the mouse button or release the mouse button).
Latest stable Firefox
Windows 10 22H2