Firefox version 2.0.0.10 appears to inherit the charset of a parent page.
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I found that Firefox 2.0.0.10 will inherit the charset of the parent
page, when that had been selected manually (does not inherit the charset
specified in headers or meta). I found this inheritance to work both
with [a href] links and [iframe src] in the parent page.
See also:
http://www.mozilla.org/security/announce/2007/mfsa2007-02.html
https://bugzilla.mozilla.org/show_bug.cgi?id=356280
Cheers,
Paul Szabo psz@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of Sydney Australia