From:  cmcadams <cmc@invalid.net>
Date:  17 Jan 2018 03:21:04 Hong Kong Time
Newsgroup:  news.mozilla.org/netscape.public.mozilla.seamonkey
Subject:  

Re: Spoofing and Seamonkey updates

NNTP-Posting-Host:  104.3.112.186

Andy wrote:
> 
> 
> Yahoo mail will no longer work in Seamonkey browsers.
> 
> I spoofed mine by adding general.useragent.override;Mozilla/5.0 (X11; Linux i686; rv:58.0) Gecko/20100101 Firefox/58.0 in about:config.
> 
> Is that going to affect my getting Seamonkey updates?
> 

Yes, Yahoo mail ("classic") does still work in Seamonkey. In my case

Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.1

Which is the vanilla user agent. Look elsewhere for your problems.