How do I get Firefox to ignore the content type and use the extension to open a file?











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I am often emailed links to files on an internal website. These files all have a ".p4r" extension. When I click on the link, Firefox (v63) prompts me to download the file. I am not given the opportunity to specify a helper application.



The HTTP header for these files is misconfigured as text/plain, even though the files are really just zip files in disguise:



HTTP/1.1 200 Document follows
MIME-Version: 1.1
Server: NetApp//8.2.3P6
Date: Thu, 15 Nov 2018 16:47:55 GMT
Content-Length: 34443529
Content-Type: text/plain
Last-Modified: Thu, 15 Nov 2018 13:33:40 GMT
X-RBT-SCAR: 10.20.160.88:271585880:1000


The Firefox "applications" preferences panel does not include any way for me to add new file extensions.



How can I tell Firefox to open a specific application for .p4r files?










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    down vote

    favorite












    I am often emailed links to files on an internal website. These files all have a ".p4r" extension. When I click on the link, Firefox (v63) prompts me to download the file. I am not given the opportunity to specify a helper application.



    The HTTP header for these files is misconfigured as text/plain, even though the files are really just zip files in disguise:



    HTTP/1.1 200 Document follows
    MIME-Version: 1.1
    Server: NetApp//8.2.3P6
    Date: Thu, 15 Nov 2018 16:47:55 GMT
    Content-Length: 34443529
    Content-Type: text/plain
    Last-Modified: Thu, 15 Nov 2018 13:33:40 GMT
    X-RBT-SCAR: 10.20.160.88:271585880:1000


    The Firefox "applications" preferences panel does not include any way for me to add new file extensions.



    How can I tell Firefox to open a specific application for .p4r files?










    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am often emailed links to files on an internal website. These files all have a ".p4r" extension. When I click on the link, Firefox (v63) prompts me to download the file. I am not given the opportunity to specify a helper application.



      The HTTP header for these files is misconfigured as text/plain, even though the files are really just zip files in disguise:



      HTTP/1.1 200 Document follows
      MIME-Version: 1.1
      Server: NetApp//8.2.3P6
      Date: Thu, 15 Nov 2018 16:47:55 GMT
      Content-Length: 34443529
      Content-Type: text/plain
      Last-Modified: Thu, 15 Nov 2018 13:33:40 GMT
      X-RBT-SCAR: 10.20.160.88:271585880:1000


      The Firefox "applications" preferences panel does not include any way for me to add new file extensions.



      How can I tell Firefox to open a specific application for .p4r files?










      share|improve this question













      I am often emailed links to files on an internal website. These files all have a ".p4r" extension. When I click on the link, Firefox (v63) prompts me to download the file. I am not given the opportunity to specify a helper application.



      The HTTP header for these files is misconfigured as text/plain, even though the files are really just zip files in disguise:



      HTTP/1.1 200 Document follows
      MIME-Version: 1.1
      Server: NetApp//8.2.3P6
      Date: Thu, 15 Nov 2018 16:47:55 GMT
      Content-Length: 34443529
      Content-Type: text/plain
      Last-Modified: Thu, 15 Nov 2018 13:33:40 GMT
      X-RBT-SCAR: 10.20.160.88:271585880:1000


      The Firefox "applications" preferences panel does not include any way for me to add new file extensions.



      How can I tell Firefox to open a specific application for .p4r files?







      firefox mime-types






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      share|improve this question











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      share|improve this question










      asked Nov 15 at 16:50









      Timur Tabi

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