um ... why are my wiki pages suddenly rendering "fi" in olde english?

[Robert P. J. Day]

  ok, maybe not old english, but recently, my wiki pages suddenly
started rendering the two-character string "fi" as some weird,
stylized "m" with a curved stroke above it (can't remember what that's
called).

  i'm on fully-updated fedora rawhide, so it might be a fedora thing,
it might be a font thing, it might be a firefox thing, i have no idea.

  has anyone else seen this? here's a sample page where this happens
throughout:

http://www.crashcourse.ca/wiki/index.php/Git_config

  the very first line -- the title "Git config" -- renders the "fi" in
"config" as i described above, and it does that throughout the page.
thoughts?

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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