Ever since the last major update to Firefox a few weeks ago, I've been having issues when using buttons such as Home, End, Pg Up, Pg Down when scrolling through webpages. If I press End, it should go to the bottom of the page, but it usually either scrolls down a small distance or does nothing at all. When I'm way down on a webpage, pressing Home should take you up to the top of the page. However, it only does this on a rare occasion. It usually either scrolls up further DOWN on the page, scrolls to just a bit lower than the top, or does nothing at all. Page up and page down are similar as well. Pg down many times scrolls wayyyyyyy up or down and Pg up goes wayyyy up or down... or nothing at all. Upon updating to FF 41.0.2, I was hoping the issue was fixed but alas, the issue remains and so I decided to post this. I HAVE tested on other browsers like Chrome and MS Edge and they utilize the buttons properly. Any advice? Thanks.