I used the '''CSS animation property''' called '''animation-timeline''' , which is written as: element{ animation-time: view(); } When I view the webpage on Chrome, Edge, Opera, and even on Phoenix browser, the animation works. It is only on Firefox that the animation does not work. I even added the Vendor-prefix of " '''-moz-animation-timeline''' " to the CSS property, and it still didn't work on Firefox, while it is working on all other browsers. The '''CAN I USE''' website ( https://caniuse.com/?search=animation-timeline ) tells me that Firefox does not support it at all. It however said that I can enable it, by setting "layout.css.scroll-driven-animations.enabled" to true. 1.) I don't know what that means. 2.) Would my website's users be able to see the animation on their Firefox browser, if we assume that I make this setting ? 3.) I am using Firefox version 138.0.3 (64-bit) : What can I do to see that both I and users of my website are able to see this animation on Firefox ? Regards.