I guess option1 is that you asked about here, or?
Another 3rd option might be: Do you know the location where the cookie file gets stored on the hard-drive?
If so you can write a little script (Powershell, node.js, phyton, …) to read the cookie content. Cookies are just text files. To read the text file, you can use csvRead or csvReadArray. Do not be confused that the command is called csvRead/csvReadArray. It can also used for normal text files/log files/cookie files, as a text file is nothing else than a csv file with only one column 