[Bug 1160935] Webpages that request Helvetica get Nimbus Sans, which has terrible kerning

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1160935

--- Comment #11 from Jason Merrill  ---
Thanks, but I'm not trying to find a better Helvetica substitute, what I want
is for Facebook to look better in Firefox.  I think the Chrome behavior quoted
in comment #5, i.e. skipping Helvetica in the web font list rather than looking
for a substitute, makes a lot of sense.