I have removed my firefox due to some issue now when i am trying to reinstall, it says we are unable to install it.

Unable to install “Firefox Web Browser” as download failed:

E: http://security.ubuntu.com/ubuntu bionic-updates/main amd64 firefox amd64 64.0+build3-0ubuntu0.18.04.1 is not (yet) available
(Temporary failure resolving ‘in.archive.ubuntu.com’)

marked as duplicate by DK Bose, clearkimura, pomsky, Kulfy, karel Dec 31 '18 at 10:06

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