If you look for "clean tracking cookies" on google, you find exclusively instructions how to nuke ALL cookies and/or how to install tracking protection extensions. Now perhaps this is intentional sabotage by Google.
What I'm trying to find is a tool that kills existing tracking cookies, e.g. you sometimes have to disable firefox tracking protection to make a given website work. In e.g. Heidi SQL editor web page the download link won't work if you don't. This will enable multiple tracking cookies to be set, which will then sit there even if Firefox blocks new ones from being set.
So, is there a stand alone tool or an extension that could take e.g. Adguard tracking cookie list and wipe out any existing cookies that match the rules? Bonus if such exists for Android which does open links in apps constantly, no doubt accumulating hundreds of tracking cookies in the process.