My up and down arrows as well as page up and page down no longer work properly only when using firefox. Page up and down function more like the "home" and "end" keys as do the arrow keys.
Honestly I'm not sure if these began just after I updated FF to the current release, but it's been happening for at least 2 weeks. The arrow keys and page up and page down keys all work as if I'm pressing the 'home' and 'end' keys on my keyboard. This is only when using FF. Please contact me if you need more clarification. Thanks in advance!