When a user browses the web on Firefox's private browsing mode, is ANYTHING about the user's activity stored onto the hard drive (like browsing history, and more importan… (read more)
When a user browses the web on Firefox's private browsing mode, is ANYTHING about the user's activity stored onto the hard drive (like browsing history, and more importantly cache files), even for an instant?
I know that the private browsing page says that it does not "save" this information, but that is kind of ambiguous as to how this data is actually handled. When you visit a page in private browsing mode, does Firefox store information and cache ONLY in the computer's RAM and never touches the hard drive, OR does it save data and/or cache onto the hard drive for a short time while while the private browsing window is active, and deletes it after you close the window? This distinction is extremely important because data saved to the hard drive, even for an instant, can be recovered by a file recovery program, or worse, by malware that collects data.
Has how Firefox handles what I talked about ever changed from version to version? What about on Android and iOS? Does private browsing behave differently on mobile?
I would extremely appreciate it if someone with a lot of experience with how Firefox works, or better yet, someone who works for Mozilla, can answer this question. Thank you.
I ask this question because a previous question asked almost two years ago claimed that Firefox's private browsing mode does indeed save data to the hard drive:
The question and (as a result) its answers were kind of ambiguous as to what Firefox's actual behavior was, so I am asking this question in hopes of obtaining a clearer answer about how Firefox handles data storage. Firefox is often praised as a privacy oriented browser, and as such, I feel that informing users of this information is vital.