Hello Arkajyoti Pal,

Please take a look at this suggestion :

https://superuser.com/questions/1420079/use-a-different-search-engine-in-firefox-private-mode

Would that work for you ?

This can be a great alternative, but seriously it would be much more convenient to have it inbuilt. I used this feature a lot in Brave browser, and would love to see it in Firefox too! :)

Arkajyoti Pal said

This can be a great alternative, but seriously it would be much more convenient to have it inbuilt. I used this feature a lot in Brave browser, and would love to see it in Firefox too! :)

You could submit this feature request here :

Input page : https://qsurvey.mozilla.com/s3/FirefoxInput/

Discourse  : https://discourse.mozilla.org/c/firefox-development

And maybe you'd even like to post about this using one of (or all of) these links :

Reddit  : https://www.reddit.com/r/firefox/

Twitter  : https://twitter.com/firefox

Facebook  : https://www.facebook.com/Firefox