[LinuxBender]

there is no point in manually deleting cache since it's wiped when closed

I used to think this as well but bleachbit shows me every time I close my browser there is much to be cleaned. I launch firefox using firejail and then when firejail exits it calls bleachbit. Even if I use "History" -> "Clear recent history" and select "Everything" there is still a lot of crud to remove. Try it out if you have some spare time.

There's even a few things that bleachbit misses by default such as moz_historyvisits in places.sqlite and files in the datareporting directory that get created even if ff is told not to create them.

[Blasters]

those are cache from the browser itself = not relevant for websites. just checked myself and they are always the same 3 files for every user with the same hash.

bugzilla.Mozilla.org/show_bug.cgi?id=1489817

Tor browser uses the same system btw