Additional programs should be installed, which are invasive. You need root password. Moreover, the security of your system will have to be compromised.
Does not work in Debian Stretch because of incompatible libraries.
Tested with Oracle Java (which is easy to install on Ubuntu) and Firefox browser.
It does not seem to be necessary to allow invalid certificates (open question: why???).
If you have UFW enabled (the Ubuntu firewall interface), then please read first the slide about UFW conflict.
Proceed to the next slide by pressing the next → link below: