I hadn't used Firefox for anything practical in years except testing things of my own for compatibility. Now I launched it from a clean state, installed that ex

I hadn't used Firefox for anything practical in years except testing things of my own for compatibility. Now I launched it from a clean state, installed that extension and logged into Facebook... and it is still slow as molasses. It feels like downgrading the hardware to something 1/10th as powerful than what I'm used to. My point of comparison on this hardware is Safari, which I use for regular everyday default web browsing. It's not just Facebook on Firefox either; everything is sluggish and even typed text lags noticeably behind, which is something I hadn't experienced on anything since the iPhone 4 iOS 7 upgrade.