Currently the extensions seems to keep all cookies that a website save e.g. when I add pcgames.de to the website, Cookie AutoDelete also keep the cookie forum.pcgames.de, login.pcgames.de.
For my understand, Cookie AutoDelete should only keep cookies for pcgames.de strictly.

Well, people have been asking for that behavior. See #3
I had some stupid things in my head so I needed to edit my previous request.
I understand that it is always about keep the balance between the normal users who wish a simple solution and the pro users who wish a more advanced solution.
May you could do it like that:
Whitelist *.google.com - google.com and all subdomains
Whitelist google.com - google.com only
Whitelist *.google.com - google.com and all subdomains
Whitelist google.com - google.com only
That won't work with the way I implemented the whitelist. I'm thinking a global checkbox turning on or off subdomain cleaning.
Yes, that would also be helping :)
@mrdokenny That is an excellent idea, having a "Whitelist Domain" option or something along those lines.
Please do update here when you get around finishing that, since I have C-AD currently disabled, it is a bit annoying since most of the websites are a bit painful to work with without domain whitelisting.
@collectorgeneral
it is a bit annoying since most of the websites are a bit painful to work with without domain whitelisting.
What do you mean cause Whitelisting domains in 1.3.0+ works like this. You add google.com and cookies from *.google.com are protected so drive.google.com would be protected.
In 1.2.0, whitelisting google.com only protected google.com and not drive.google.com.
What this issue is proposing is an option to switch between 1.2.0 whitelisting behavior and 1.3.0 whitelisting behavior.
1.3.0's behavior is simplier to use cause you don't have to whitelist as many domains while in 1.2.0's behavior, you have to whitelist google.com, gmail.google.com, drive.google.com, etc.
@mrdokenny Woops, upon a bit more investigation, I may have found a couple of issues with the current domain system implementation you have. I will open another issue since it does not belong here.
Added a setting called "Enable Check for Subdomains" that can be tested in 1.4.0b1.
looks great, thank you!
I usually leave the issue for major features open until the stable version of the extension is released on AMO and on Chrome Web Store, just in case people open up issues for the stable versions even though it's added in the development branch.
So there's this setting in SDC:
Anyone know if that setting is the same as the option I added in this issue or is it something completely different?
@mrdokenny Does the "Enable Check for Subdomains" setting work with the "clear all cookies for this domain" feature?
@07416 No
Most helpful comment
Added a setting called "Enable Check for Subdomains" that can be tested in 1.4.0b1.