FQB Companion is an extension that allows you to open URL's with cookies and or proxies in them. Handy for opening links from FQB.
You can also change your region. This won't work on all sites, but is primarily made for AMD.

Format:
Proxy: https://url.com/?proxy=ip:port:login:pass

Cookie: https://url.com/?key=cookie1=value1;cookie2=value2 (not ending on a ;)