firefox keeps refreshing, help please?

Keith S

HI, I was told when I posted this issue before about making a change in the firefox settings, but I have not been able to find anything regarding this issue in the settings for firefox.
When I open a page on firefox, the page constantly refreshes when I arrow down  the page, sending the cursor back up to the top of the page, making reading a webpage or finding exactly what I am looking for on said page impossible.
Could someone walk me, step by step, into correcting this issue?
version 52.9.032

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