On the menu page in Max.com, clicking the right arrow in a category will scroll right for one second and then it bounces back to where it started. This problem started in the last 7-10 days. I'm using Windows 10. Other streaming services like Amazon Prime, Netflix work fine, so I've submitted the issue to Max. But another browser, MS Edge works fine with the scrolling on Max.com, so I don't know if the problem is the browser or Max. I can't find anything in Firefox's settings that affects this issue.