It depends on your browser, but probably. It’s a popular enough extension that I’d be pretty surprised if any browser that can do extensions at all doesn’t have something equivalent.
(Also possibly notable: If you’re using Firefox, pressing ‘esc’ will stop all animated gifs on the page until the page is reloaded.)
Is this something I can easily obtain?
It depends on your browser, but probably. It’s a popular enough extension that I’d be pretty surprised if any browser that can do extensions at all doesn’t have something equivalent.
(Also possibly notable: If you’re using Firefox, pressing ‘esc’ will stop all animated gifs on the page until the page is reloaded.)