Форум поддержки Firefox

I want to know if there is a way to make Firefox fully load a websites content

Like the video shown, this was taken on another browser, the browser used here is Edge, I had to scroll in order for it fully load its contents and on other browsers if there is such an option of loading it'll automatically load all the websites contents without me scrolling at all such as Brave.

https://tempclip.com/RO5TtZYLAlf3oz7/watch