Webfonts blocked in TBB w/ FF 17
github.com uses a unicode characters as icons from a custom webfont they load. In the latest TBB alphas this font is not being loaded, and as such, the icons are displayed in the default font, which makes the site very difficult to use.
Attached is an annotated screenshot.
I tested this with NoScript and HTTPS-E disabled, so I believe it relates to the FF patch set.
Trac:
Username: abel
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