purging search history/cookies, resetting identifiable information while keeping config & extensions on every start-up.

How would one purge their cookies, search history, tab data while resetting/randomising identifiable information (for example if Firefox were to give each user a serial number or unique tag which it hands to webpages), all without resetting a users a user's browser settings, about:config & browser extensions downloaded (and extension settings). I am using Debian GNU/Linux, so bear in mind that I will be using the most stable version of Firefox on the Debian repos, not the newest version. I do not have a command line phobia, I am willing to do a lot of initial setup & run a specific command every time I launch the browser, even if said command is long. My current system involves ''rm -rf''ing the profile on a browser, but this is not optimal because it removes settings & extensions. Thank you verry much for your assistance, I know this is a large undertaking and it a little overboard on the privacy and security front.