Mouseover effects not working

Basically the problem is I'm not triggering mouse over effects or some reason. I first noticed it wasn't triggering the alerts drop down. But I went on a hunt for new content today and it realized its not pulling up the thread previews when hovering over a thread title.

Using the current version of firefox on windows

 

I'm only using ublock orgin and tampermonkey with a single script that effects QQ

Spoiler: invisitext revealer

Code:

// ==UserScript==
// @name		  Invisible text revealer
// @namespace	 http://dreadis.local/
// @description   Reveals invisible text on forums
// @match		 https://forums.sufficientvelocity.com/*
// @include	   https://forums.sufficientvelocity.com/*
// @match		 https://forums.spacebattles.com/*
// @include	   https://forums.spacebattles.com/*
// @match		 https://forum.questionablequesting.com/*
// @include	   https://forum.questionablequesting.com/*
// @match		 https://forum.questionablequesting.com/*
// @include	   https://forum.questionablequesting.com/*
// @version	   0.2.1
// @grant		 none
// ==/UserScript==
 
function iterate_spans() {
	var spans = document.getElementsByTagName('span');
	for(var i=0;i<spans.length;i++) {
		span = spans[i];
		if(span.style.color.toLowerCase() == 'transparent') {
			span.className += ' invisitext';
			span.style.color = null;
		}
	}
}
 
function add_new_css() {
	var node = document.createElement('style');
	css = '.invisitext { border: 1px dotted red; color: transparent }';
	css += '.invisitext { color: red }';
	node.textContent = css;
	document.getElementsByTagName('head')[0].appendChild(node);
}
 
function main() {
	add_new_css();
	iterate_spans();
}
 
main();

Ive tried it without them running and it still doesn't work. do you know of any of the browser settings that might break it? or maybe windows(10) settings?


Just thought to test. the mouseover effects work fine on my other computer running ublock orgin and greasemonkey with the same script.


Edit. only difference in browser settings was one security setting on the problem computer that was set more strict. dropped it down to match my other and restarted the browser. no change.

 

Any other add-ons, or are ublock orgin and tampermonkey the only ones you have?

 

Feh...
Something something, touch screen detection. You're having this problem on Firefox on Windows 10. Is the other computer, on which you're not having this problem, running something other than Windows 10?

I remember SV/SB running into a superficially similar problem with Chrome, and the issue turned out to be Chrome was always assuming a touchscreen. (I think there might have been other factors interacting? But I'm not sure without looking.)