firefox cannot connect to any website, other browsers can?

[Colin Law]

On Thu, 13 Jan 2022 at 08:51, M. Fioretti <mfioretti at nexaima.net> wrote:
>
> Hello all,
>
> I am running Firefox 95.01. on an Ubuntu 21.04 64-bit box. All of a
> sudden, for no visible reason, Firefox stopped connecting to any
> website, including some that are surely online, e.g. cnn.com, google,
> etc..

Those are all working fine for me in that version of FF on Ubuntu 20.04.
If you create a new profile in FF, or logon as a different user, is it ok?

Colin