Replacements for Firefox and Thunderbird?

[rikona]

On Wed, 13 Jan 2021 11:41:51 -0800
Walt <w7prb at comcast.net> wrote:

> I have had good results using Pale Moon.  I still use TBird however.
> 
>    walt, W7PRB

I use both also, but have not figured out how to easily/reliably update
Pale Moon [says is untrusted source and won't update]. How do you do
that?