I never activated two factor authentication so no problem. Only issue at sourceforge is I have to use git from command line. SmartGit don't work. At least I cant get our ancient version to work. When pushing from cli I've to type the password at command line. Link
https://username:password@sourceforge... does not honor the password. Pushing via SSH doesn't work for me too. Some /nonexistant/known.sites (?) error. No clue if it's our ssh or my setup. I've never used ssh before so probably the problem is my missing knowledge.
It took a while until sourceforge showed up my content. Your cc-os2 looks fine. At least to my not very experienced eyes ;-). I see the 'seamonkey-2.42.9esr_Pentium4_20220111.en-US.os2.zip' build.
Is this the stable one with inline nss*? I'm still using your SeaMonkey/2.42.9esr Build-Identifikator: 20190520220003 cause this is the most stable here.Edit - should have read your comment first before posting.
Btw. sometimes I'm very pissed off from all these pseudo-security nonsense with tons of javascript and redirection to foreign sites. Just renewed my ArcaOS subscription and was pleased to see that you can simply pay with credit card by using your basic card data and click pay. Here in Europe you've all these crappy, expensive 3 way authentication now. Name, number, expiration date, security number, link to other site, even more secure-secure-secure password, and finally a sms tan. Stupidly complex. Payment can be so simple without all these overkill.