Firefox 4 is displaying all text as "bold"

Posted by Mateo on Super User See other posts from Super User or by Mateo
Published on 2011-03-22T20:38:07Z Indexed on 2012/09/25 15:40 UTC
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Filed under:

windows-7

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fonts

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firefox

I installed Firefox 4 this morning excited to checkout some of the new HTML 5 features that have been implemented and found that all text was displayed in a bold font. Here is the comparison with what Firefox 4 is displaying on my machine and Chrome.

It is getting really annoying. So far I've...

Emptied the cache/history/etc.
Re-installed the various core fonts (Arial, Courier, Times New Roman, etc.)
Checked the font defaults in FF4.

The interesting part to me is that I had FF3.6x on this machine with no problems whatsoever and now this. Any ideas?

System Description

Windows 7 (x64)

Update

I just found out that this is happening in IE9 (final) as well. Must be something with the system fonts. Like I said before, this wasn't happening pre-FF4.

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