When using TBB, right-clicking on a link to download it (i.e., "Save Link As...") generally results in the following message:
An external application is needed to handle:
< URL of file to be saved >
NOTE: External applications are NOT Tor safe by default and can unmask you!
I have noticed, though, that this does not happen when I download a plain text file.
Is there some way to download, say, a PDF file without launching an external application?
I've looked at the Applications tab of the Preferences menu hoping I'd find a way to prevent an external application from being invoked, but it was not obvious to me that any changes there would help.