Comodo icedragon?!

HELLO IM New here and what is Comodo is it a browser? and what is DNS??

Browser based on Firefox

Free Comodo Secure DNS | Best DNS Security Solution 2022 COMODO DNS
Endpoint Detection and Response, Free - What is EDR Security? COMODO configurable DNS

DNS as Fast As Possible

0:57 - 5:51 General DNS Talk
Comprehensive Guide to pfSense 2.3 Part 7: DNS Resolver and Benchmarking

so are IceDragon Internet Browser - WITH DNS??

WHAT ARE DNS FOR??

AND IS IT Free to Install ??

google is your friend:
DNS