On Firefox, scrolling to the anchor on a new page is not working

[mvz]

I am using Turbo with Rails using the turbo-rails gem. My application has internal links that use an anchor to scroll an important element into view. This works on Chrome and Webkit. However, on Firefox, users end up at the top of the page. When I step through the code, I can see that the correct anchor is scrolled into view, but then the onScroll handler sets the position back to the top of the page. The change to focusElement presented in #1255 (comment) also solves my problem.