Recent answers to How can I fix this extremely thin font problem?https://support.mozilla.org/en-US/questions/11559622017-01-31T22:35:06-08:00On Windows Firefox may not distinguish between the various fonts that belong to specific font-family2017-01-31T22:35:06-08:00cor-elhttps://support.mozilla.org/en-US/questions/1155962#answer-958832<p>On Windows Firefox may not distinguish between the various fonts that belong to specific font-family and treat them as one font family.
A specific font variant is chosen based upon what font style and variant and weight rules are specified via the CSS properties.
</p>Thanks, the Flash test actually helped. Looks like it's Helvetica BQ. I don't have it in my Windows 2017-01-31T09:04:42-08:00aesthetictherapyhttps://support.mozilla.org/en-US/questions/1155962#answer-958723<p>Thanks, the Flash test actually helped. Looks like it's Helvetica BQ. I don't have it in my Windows folder, and it only appears in my Photoshop list, so what do I do to get rid of it?
</p><p>Also, would you be able to explain why certain websites are using it after I deleted the majority of my fonts? Theoretically shouldn't everything be chosen by the websites since that's my Firefox setting?
</p>You can do a font test to see if you can identify corrupted font(s).
http://browserspy.dk/fonts-fla2017-01-30T20:51:57-08:00cor-elhttps://support.mozilla.org/en-US/questions/1155962#answer-958489<p>You can do a font test to see if you can identify corrupted font(s).
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<ul><li><a href="http://browserspy.dk/fonts-flash.php?detail=1" rel="nofollow">http://browserspy.dk/fonts-flash.php?detail=1</a>
</li></ul>
<p>You can try different default fonts and temporarily disable website fonts to test the selected default font.
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<ul><li>Options/Preferences -&gt; Content&nbsp;: Fonts &amp; Colors -&gt; Advanced
</li><li>[ ] "Allow pages to choose their own fonts, instead of my selections above"
</li></ul>Yes, as I suspected, it's probably a thin Helvetica Neue version. It says either Arial, HelveticaNeu2017-01-30T20:07:59-08:00aesthetictherapyhttps://support.mozilla.org/en-US/questions/1155962#answer-958480<p>Yes, as I suspected, it's probably a thin Helvetica Neue version. It says either Arial, HelveticaNeue-Roman, or HelveticaNeue-UltraLight.
</p><p>Sorry if this whole question is very vague. To my understanding, since Firefox is letting websites chose their own fonts, it would make sense for Yahoo to be using that particular Ultra Light version intentionally.
</p><p>However, it was never like this for me before, and I've started to notice the Ultra Light version pop up every now and then on different websites after clearing my fonts.
</p><p>Is it like this for you on Yahoo? It can't be.
</p><p>Upon opening Photoshop, I noticed I have a lot more accessible fonts than are listed in my Fonts folder. That it itself is completely strange to me and I have no idea how to fix it, but I still don't have HelveticaNeue-UltraLight on my computer, so I can't possibly see how my computer would be defaulting to this version of Helvetica Neue if these websites, like Yahoo, are not intentionally using it.
</p>What font is used to display this text?
You can right-click and select "Inspect Element" to open the2017-01-30T17:44:27-08:00cor-elhttps://support.mozilla.org/en-US/questions/1155962#answer-958435<p>What font is used to display this text?
</p><p>You can right-click and select "Inspect Element" to open the Inspector ("3-bar" menu button or Tools -&gt; Web Developer) with this element selected.
</p><p>You can check the font used for selected text in the Font tab in the right pane of the Inspector.
Set <b>devtools.fontinspector.enable</b> to true on the <b>about:config</b> page to enabled the Font tab.
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<ul><li><a href="https://developer.mozilla.org/Tools/Page_Inspector" rel="nofollow">https://developer.mozilla.org/Tools/Page_Inspector</a>
</li><li><a href="https://developer.mozilla.org/Tools/Page_Inspector/How_to/View_fonts" rel="nofollow">https://developer.mozilla.org/Tools/Page_Inspector/How_to/View_fonts</a>
</li><li>devtools.fontinspector.enabled = true
</li></ul>