[Bug 84880] Re: firefox uploads files with wrong mimetype

[everflux]

I found a fix for the issue.
While I am not sure what is causing it (firefox or ubuntu) the problem is in the "mimeTypes.rdf". delete the file while firefox is not running and the problem is gone.

Whenever firefox downloads a file with a wrong mimetype it will record
the broken mimetime along the file extension in that file and use that
again when uploading files.

This is contagious, once a download is done with a bad type it is
persisted and will be used for an upload, if the remote site keeps the
mimetype from the upload and uses that when sending the file to the next
user with firefox it will record it in that users mimetypes....

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Title:
  firefox uploads files with wrong mimetype

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