Privacy Browser PC

My hesitation in doing this is that the typical way to do this saves a temporary copy of the file to /tmp, which creates a record on the hard drive of part of the browsing history, which records the users may not think exists and which will be deleted at some uncertain time in the future.

I would be much more willing to do this if there was some way to pass a memory backed file to the other app, instead of storing it in /tmp.