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Website does not recognize uploaded file as pdf

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A website is rejecting uploaded pdf files with the error message that it is not a pdf file. The site accepts the same files uploaded with IE from the same computer. It also accepts the file uploaded with Firefox from another running Windows 7 Professional.

This happened

Every time Firefox opened

== The first time I tried this was 5/8/10

A website is rejecting uploaded pdf files with the error message that it is not a pdf file. The site accepts the same files uploaded with IE from the same computer. It also accepts the file uploaded with Firefox from another running Windows 7 Professional. == This happened == Every time Firefox opened == The first time I tried this was 5/8/10

Wšykne wótegrona (1)

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I think this has to do with the corruption of a mime file. Find the ".ini" file in your Firefox directory and get rid of reference to pdf's.