Safari Upgrade causes problems with many websites

This is a dead link. Where is the fix?

This is a dead link

Try a reinstall: http://swcdn.apple.com/content/downloads/02/03/061-61260/wpceq4s7wuww8z0v8ukjmx4r9dfelkma2f/Safari13.1MojaveAuto.pkg but I can not provide further support (I am on 10.13 and .15). Catalina works fine.

I am still having problems with Safari 13.1 on High Sierra. I cannot access my Apple ID or iCloud from Safari, despite having done everything suggested in previous posts. In addition to resetting or clearing everything suggested, I reinstalled High Sierra using the internet method, reinstalled the latest security update, and even reinstalled Safari 13.1 using the download others have found useful. Not only must I still use Firefox to get into this forum and a few other sites (at least I can do that), I got the extra added bonus of having multiple Mail app crashes after reinstalling the system. Since Firefox works fine, I must conclude that Apple messed up Safari and needs to fix it now.

This was happening to me.. it could be due to the fact that you have

High Sierra v. 10.13.6,

Safari v. Version 11.1.2 (13605.3.8) and this

Security Update ... Installed... and it causes a problem.

Try Rebooting and holding 'Command+r' use that to install your operating system again (DONT USE OPTION ERASE DISK FIRST). Then when you open the App Store, make sure your Preferences page is set to not automatically install Security Updates...

I can't resolve the issue with memory leaks in 13.1 on Mojave. Starting in safe mode, deleting history and cookies, checking disk, reinstalling Safari from .pkg - PROBLEM STILL PERSISTS!!! Working with sites which opens pages from within pages is absolutely impossible, memory leaks infinitely!!

Never had such problem in 13.05! Apple HAD TO FIX IT!!!!

Excellent - this seems to have worked! I tried lots of other things. Many Thanks.

Some Mojave users could not solve the problem by reinstalling Safari. Safari for Mojave link inside the thread. Good luck!

I tried these with no success, however a reinstall of Mohave solved the issue.

Rgs

Thanks for the help, but the link on page 2 for Mojave isn't working. Can you repost it here? Thanks!

I have just downloaded this and I'm able to access some webpages that previously didn't work. Hopeful it will work for others in the future. Thank you.

Thank you for getting back to me so quickly. Unfortunately it didn't work. Is there anything else I can do?

FYI - Problems for me persist with SecUpd2020-004HighSierra and Safari 13.1.2. Sigh!