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Repeatedly asked what program to oper PDF, Word, Wav, etc. despite defaults being set in tools, box checked

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Despite setting defaults for PDF, Word Docs, Wav files and box being checked. I am asked EVERY time; "what program would you like Firefox to use."

Despite setting defaults for PDF, Word Docs, Wav files and box being checked. I am asked EVERY time; "what program would you like Firefox to use."

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Can you post an example link that is publicly accessible?

Sites can cause the download prompt to appear regardless of your settings, using one of two methods:

  • Identifying the file as a generic MIME type using the Content-Type: application/octet-stream header.
  • Sending the Content-Disposition: attachment header.

You can check if that's the case by examining the response headers for the file request in question, using the Web Console (Ctrl+Shift+K).