Question About Getting A Browswer That Supports Multiple Windows And Multiple Proxies

Hi guys, I am having trouble finding the right tool (or browser) that allows me to switch proxies and delete cookies so that I can switch between IP's easily.

I know that Firefox and Foxyproxy together will allow me to switch IP's while deleting the cookie and cache, but I would like to use another program/browser. I've tried scrapebox internal browser, but it won't let me switch without clearing cookies/cache (unless I reboot the bot)

Any idea which program would fit my description?