I patched down the change and restarted all services

Standard	High-Contrast	Dark Mode	Large-Font	Deuteranopia
			looks good

what MacOS are you running?

10.12.5 "Sierra" with Firefox 54

Tried 2 different Macs and neither of them can reproduce this. It's a safe change though, feel free to accept.

Are you using HiDPI?

I don't know - what is that? I tried on a macbook which has retina display. The other mac I tried has a monitor I think is regular type

I don't know if this matters but looks related (I never changed it, just perusing the about:config):

doesn't exist in my config.

I'm not sure where else firefox would have details about the install. I have 3 extensions installed

• Add-on Compatibility Reporter
• Firebug
• NoScript

The other browser I was trying this on doesn't have NoScript (and I don't think has Firebug either)

By "other browser" I mean the other Mac OSX Sierra FireFox 54 (non-retina)

Ok, I have it working on my laptop but not my desktop.

Quite possibly a rabbit hole
https://bugzilla.mozilla.org/show_bug.cgi?id=910022

I also tested this change with Safari looking at Standard and High-Contrast modes - they look the same. I'm not able to test IE or FF on Windows. I could try them out tomorrow.

Not going to spend any more time here, works on my laptop, not my desktop. No real discernable difference between the two.

(Mouse vs no mouse, to trigger scrollbars? I have a mouse...)