"Clear Browsing Data" must clear ALL browser data, as if I was doing a completely fresh install of my browser but maintaining my settings, extensions, bookmarks, and auto-fill.
That is IT. Yes, Google Chrome, you must also delete Google cookies (which they do not do).
A lot of pieces of software non-maliciously keep records of everything you do with them through logs or caches that aren't straightforward to delete and it's the only way I found to have control over it.
This is an interesting approach. Do you have any documentation on to how it was setup? Also, how do you change a setting in your browser? Do you have to rebuild your base layer?
No docs I'm afraid and I set it up too long ago to remember the exact details. I used overlayroot, there are some really good resources on google to set it up like this. If I remember correctly it's just a matter of setting the overlayroot.conf file to:
overlayroot_cfgdisk="disabled"
overlayroot="tmpfs:swap=1,recurse=0"
linux /boot/vmlinuz-5.3.0-51-generic root=UUID=... ro $vt_handoff
I think this blog post describes it well: https://spin.atomicobject.com/2015/03/10/protecting-ubuntu-r...
For modifications to the base, installing or modifying software, etc I have a grub option to disable the overlay system and mount the base partition in read-write so it can be used normally. So I reboot into this option, do my changes, then reboot immediately in overlay mode.
linux /boot/vmlinuz-5.3.0-51-generic root=UUID=... rw overlayroot=disabled $vt_handoff
Unfortunately nuking the whole of the container while effective, it's probably not desired, as it contains various browser settings and browser extensions.
bleachbit.org
The ability to clear browser data is not quite enough. Caching should be disabled by default in all browsers due to the potential for abuse. Oh no, now companies are getting less conversions and sales due to the loss in performance... Sucks to be them. Actually the more their abuse costs them the better.