Firefox crashed because wrong Mime Header on jar files
Lighty sends a wrong Content Type for .jar files; so firefox crashes and the IE hangs.
I compared the output of Apache and Lighty. Lighty sends application/octet-stream and the apache sends application/x-java-archive. I added
".jar" => "application/x-java-archive",
in the mimetype assign section and all was fine :) Please add this line by default to the lighty config to avoid this problem.
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