Browser displaying most text in one font:

[onispumoni]

So I downloaded Helvetica Nueue Ultralight for a class project, and for whatever reason, my browsers have been displaying some, but not all, text in this font now. Obviously, it being a super thin font, it's incredibly difficult to read. I've been trying to figure out what exactly is up with this, but I've been unable to resolve the issue from googling.

Things I can tell you about what's going on:
In the interim I've just turned off the "Allow pages to choose their own fonts, instead of my selections above" and that displays text in a legible way for me. The only other thing that I can tell you is that this problem also displays in Chrome. I've taken some screenshots as a way to display as much information as possible.

Text display with "Allow pages to choose..." turned off:
http://i.imgur.com/xx4SWg6.png

Text display with "Allow pages to choose..." turned on:
http://i.imgur.com/xvFCSdG.png

Content options:
http://i.imgur.com/3UYBZSu.png

Content advanced options:
http://i.imgur.com/CGsQKTm.png

[DanRaisch]

Since it is also occurring in Chrome this would seem to be a Windows issue. Moving to MozillaZine Tech.

[patrickjdempsey]

Is this that new(ish) Apple font? I've read many different reports over the last few years that that font just really doesn't work well on Windows, especially in web browsers and was causing wide spread problems just being installed.

[onispumoni]

Is this that new(ish) Apple font? I've read many different reports over the last few years that that font just really doesn't work well on Windows, especially in web browsers and was causing wide spread problems just being installed.

I'm not entirely sure, but from what I can tell, the font doesn't appear to be new.