Duckduckgo does not care about your privacy: https://www.wired.com/story/duckduckgo-microsoft-twitter-ft-bush-assassination-whatsapp/

No thanks, my firefox browser works flawlessly.

Honestly, it’s going to take a lot for me to leave Firefox.

Is it built on chromium?

I currently use Firefox simply because it’s the one privacy focused browser not built on chromium. I don’t want to contribute to Google’s monopoly over browser traffic.