Accessing Cookies In Chrome Extension

I'm trying to write a chrome extension that works with YouTube and need to access some of YouTube's cookie information. I cant seem to get my extension to see any cookies. (Even

Solution 1:

for future users: youtube.com use ".youtube.com" as cookie domain to allow the site to share cookies across all youtube subdomains so in your example you should use domain name without 'www' subdomain for example:

chrome.cookies.getAll({domain: "youtube.com"}, function(cookies) {
  //...
});

you can clearly see cookies domain using default chrome developer tools

Solution 2:

I figured it out. In my manifest I was asking for permission on www.youtube.com but the cookies I was trying to read were on simply youtube.com without the www. Adding the plain youtube.com to the permissions in manifest fixed it.