Simple web browser that allows for multiple IP proxy connections

I am purchasing private proxies and am looking for a web browser that i can easily set the ip address for each tab/window. I want to be able to easily/quickly switch between each tab/window, with each one being connected using a different IP that i set

Try this: https://ghostbrowser.com/blog/set-different-proxy-for-each-tab/ or Multiloginapp (10 profiles are free) or look into how to run multiple Firefox profiles simultaneously, so you can set a different proxy for each instance.