When you enter your password and press Update Settings, what really happens is that the certificate presented by that web site is added to the Certificates set in your login keychain. Your password is needed in order for Safari to have permission to add something to your keychain.
If you open up Keychain Access.app, select the login keychain and then the ...
When you allow Safari to "update settings", the certificate for that web site is added to a list of trusted certificates in your login keychain for web-based TLS (SSL) traffic, but the exception will be limited in scope since the certificate is not trusted for other uses, like S/MIME, code signing, IPsec encryption, etc.
In addition to using the Keychain ...
As of Safari 12, all options for doing so have been removed:
The Appearance panel is (long) gone
The defaults keys are no longer respected
CSS @font-face definitions are limited to a built-in whitelist of local() values, ignoring any other fonts installed on the system, which is part of a broad package of anti-fingerprinting measures
Taken together, this ...
Enable parental controls in System Preferences and black list Safari on Mojave and older. On Catalina it’s called screen time, but you can blocks apps like a safari there as well.
If you need the high security option, get the self control app. Warning, you will not be able to use the internet or blocked sites until the time you enter passes. If you ...
First off, the high number is the average energy impact, not the current.
This is in line with what you say you currently have open: merely 4 tabs.
Since I don't know what you have been doing before, I can't tell you exactly what might have caused this energy impact. But there is quite some cached safari web content (read more here, quite old though).
I am already on 10.14.6 so can't confirm this but have downloaded 10.14.6 Update (I didn't check the Combo Update) and looking the .pkg with Suspicious Package shows it includes Safari version 12 not version 13. Note it is 12.1.2 not 12.1.1 as you now have.
Mojave 10.14.6 Supplemental Update also contains Safari 12.1.2.
It isn't clear why you aren't ...
Holding esc can stop many pages from loading/ progressing.
You can install content blockers, ad blockers which can zap the troubling elements from ...
Well the only solution I have found for that issue is to serve the website in safari private mode.
Than safari still complain that the connecton is not private but you can hit "deatils" and than "open website".
With this workaround its not needed to edit /etc/hosts