^ I am not running the current version of Firefox. I'm running a souped up, well worn in, old version 54 that will have to be pried from my cold, dead, hands. 😉
Sometimes, the extensive mods and blocking I do with it, breaks sites, so I run latest Chrome too but as you see, the latest isn't always a solution. Yes there are some Firefox add-ons that slow it down, even create memory leaks so you have to choose carefully. The memory space in Firefox is apparently not infinite, can run out before your main system memory is exhausted including the x64 version.
Just now, I let IE11 go online for the first time in ages, and it can see the Amazon review comments too.
Maybe this is an experiment by Amazon, put the statement out there that they're going to do something then gauge the internet response. It seems pretty coincidental to have both of these things happen within the span of a couple weeks.
Is there an official statement by an Amazon rep instead of just 3rd party questionable info? Sorry if someone linked that already but there is only so much time and so much text to read...