How to assign a custom proxy for each tab in the browser?

Question

Browsers

Hello, I need to open a site from 2 dozen different ips at the same time. For convenience, I do not want to open 20 browsers. It would be ideal to somehow configure the connection to the proxy from a separate browser tab. Various requests will go from the open tabs, it is necessary that they also pass through the proxy
. Does anyone know if there are any plugins for this?
If there are no plugins, then what are the options for implementing my plan?
I apologize in advance for the fact that I didn’t understand everything, I’m not a master of the word.

Answer 1

Try the Tor browser.

Answer 2

Probably, only in a perverted way (for example - Chrome):

1. Create a new chrome user
   
2. Install any plugin that allows you to change the proxy
   
3. enjoy it
   
4. Repeat
   

Answer 3

win+R , firefox -p