Rated 5 out of 5 stars

I resolved my problem. My about:addons page contained 2 copies of "AP-fixed to 0.8.0.10.1-signed" in it.

I disabled the one that said: "AutoPager is a Firefox/Mozilla/Chrome/Opera/Safari/Fennec extension to autoload the next page(s) when you scroll pages."

And left the one that said: "AutoPager Fixed is a fixed version of AutoPager extension for Firefox 36+ (non-E10s mode) to autoload the next page(s) when you scroll pages."

I haven't made any changes to FireFox in years, so it must have been something Mozilla did. Plus, version 38.0.5 is not accessible to the users yet.

Thank you for your very prompt reply! I truly appreciate your effort & time!!!

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