ANSWER - method to downgrade from Safari 14.0.2/14.0.1/Mojave (multiple problems eg loading files)
Here's how to uninstall Safari 14.0.2/ 14.0.1 and revert to Safari 14.0, when in Mojave - having problems uploading files in Ebay/GMail/Yahoo/Craigslist etc etc
There are many many threads complaining of problems, I have posted this answer in some of them, but people are not finding it.
This is my solution it works for me, and it seems for others as well - there might be a better solution - but Apple need to fix 14.0.2/14.0.1 in Mojave.
ANSWER - reinstall mojave, install the macOS supplementary update and the security updates - DO NOT upgrade to 14.0.2/14.0.1, make sure to UNCHECK the Sarai 14.0.2/14.0.1 update every time.
DETAIL-
- Back up Mac with Time Machine etc.
- Download Apple MacOS Mojave installer from here macOS Mojave 10.14
- This will give you mojave 10.14.6 and Safari 12.1.2
- Goto System Preferences, Software Update.
- Underneath the Catalina update notification, there will be a sentence "Other updates are available", click on the more info link, and then UNCHECK the Safari 14.0.2/14.0.1 - you can install/update the rest.
- You will be left with an up to date Mojave 10.14.6, Safari 14.0 and all the security updates (you might need to run update again to get second security update - REMEMBER to UNCHECK Safari 14.0.2/14.0.1 update)
Its a slow process on my old iMac late 2012, but it is straightforward.
Just remember to keep unchecking the Safari 14.0.2/14.0.1 install, in the software update pane (in my case underneath the catalina update blurb) after the mojave reinstall.
Safari 14.0 comes bundled in the macOS supplementary update - and that's where I've left it for now.
The 3 security updates are fine to install.
good luck