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Firefox changes downloaded file´s extension

Alex Tiburcio
Alex Tiburcio
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I need to download a file with extension .IES. I´ve tried with other browsers and I can download It without problems. But when I try to do it in Firefox, the file´s extension changes from .ies to .pdf wich is a problem because users have to change manually the extension to the correct one. Is there a way to configure Firefox to don´t change file extensions?

I also try to configure downloads but that file extension doesn´t even shown on the list.

I need to download a file with extension .IES. I´ve tried with other browsers and I can download It without problems. But when I try to do it in Firefox, the file´s extension changes from .ies to .pdf wich is a problem because users have to change manually the extension to the correct one. Is there a way to configure Firefox to don´t change file extensions? I also try to configure downloads but that file extension doesn´t even shown on the list.
Attached screenshots

All Replies (1)

GerardoPcp04
GerardoPcp04
  • Top 25 Contributor
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Hola, Que el Firefox con las descargas de archivos es manejado por el archivo de configuración handlers.json que se encuentra en la carpeta de perfil de Firefox https://mozilla.github.io/policy-templates/#handlers Ahora no recuerdo que este pueda cambiar la extensión descargada, prueba buscar en ese archivo y eliminar la línea que contenga IES y/o PDF Saludos

Modified by GerardoPcp04

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