Mozilla Firefox and Google Chrome ship with built-in pdf reader applications that will display documents in the browser when you click on them.
While some may like that as it may be convenient for them, others may prefer to use a different program for that or download the files directly to their computer system to load it in a desktop program instead or have it there for safekeeping.
It is possible to download pdf documents directly in both browsers or configure the browsers to use third-party plugins to handle pdfs.
Just right-click on the file link and select the save option here, but if you want that to be triggered on a left-click as well, you need to modify how pdf files are handled by the browser.
How to disable Chrome's pdf reader
It is pretty simply to disable Google Chrome's native pdf reader.
When you click on a pdf document afterwards, it will automatically be downloaded instead of displayed.
Note: If you have installed another plugin or extension that acts as a reader for pdf documents, then it will be used.
Turn off PDF reader in Firefox
Firefox users have multiple options in this regard. The first uses the browser's applications menu to set a different action for pdf file types.
To disable the internal pdf reader, select always ask or save file. If you want to use another pdf reader, select the program instead.
There is a second option available, and it involves editing Firefox's advanced configuration.
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