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Firefox flags MP4 file as malware

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  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

jordanf
jordanf

Hi,

Is there any reason firefox would flag an mp4 file legitimately?

  • The file extension and file type are absolutely mp4.
  • There seem to be no mp4 related zero days.

Does Firefox perhaps just treat all downloads from suspicious domains as malware? Is there a zero day I missed? Is this based on some missing metadata on the file or something?

Thanks for any advice you can give here, I'm scared.

Hi, Is there any reason firefox would flag an mp4 file legitimately? * The file extension and file type are absolutely mp4. * There seem to be no mp4 related zero days. Does Firefox perhaps just treat all downloads from suspicious domains as malware? Is there a zero day I missed? Is this based on some missing metadata on the file or something? Thanks for any advice you can give here, I'm scared.

Ọ̀nà àbáyọ tí a yàn

Yes, if a domain is flagged as a suspicious download location then all files downloaded from this location will be flagged, so this has nothing to do with the file extension. See also the about:url-classifier page.

Ka ìdáhùn ni ìṣètò kíkà 👍 5

All Replies (1)

cor-el
cor-el
  • Moderator

Ọ̀nà àbáyọ Tí a Yàn

Yes, if a domain is flagged as a suspicious download location then all files downloaded from this location will be flagged, so this has nothing to do with the file extension. See also the about:url-classifier page.