When you click a link to download a file, you may see a dialog asking whether you want to save the file or open it with a specific application, if Firefox cannot handle the file internally. The Media type , also called the MIME type or Content type , as configured by the web server, will determine what action Firefox will take. When you tell Firefox to open or save the file and also check the option to "Do this automatically for files like this from now on" see below , a new Content Type and Action entry for that type of file will appear in the Applications section of the General panel in Firefox Options Preferences Settings.
You can change what action Firefox takes for defined content types. This will not affect media embedded in a web page - only links to the files themselves. In the Menu bar at the top of the screen, click Firefox and select Preferences. Click the menu button and select Options Preferences. Click the menu button and select Settings. When you click on a link and Firefox doesn't have a content type and download action set up for that type of file, Firefox will ask you how to handle the file:.
If you are having problems with how Firefox is handling file downloads that you can't resolve, or if you just want to start fresh, you can restore the default content types and actions by manually deleting the file that stores these settings. Grow and share your expertise with others.
Answer questions and improve our knowledge base. Grow and share your expertise with others. Answer questions and improve our knowledge base. Search Support Search. Note : This feature is available starting in Firefox version 83 and higher. Was this article helpful? Volunteer Grow and share your expertise with others.
Learn More. This page will outline how to make the browser download PDF files automatically, rather than open them in a new tab. To proceed, select your browser from the list below and follow the instructions. To change the name of a PDF file you want to download, right-click the download link and select Save As. However, downloading a PDF is still possible.
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