MrsCalabash wrote:
I was alerted that I had extensions that are not going to be supported on MacOs but I don't know what they are. How to change or alter when you don't know?
If you are not having an issue— I would not worry about these generic warnings.
When apps get updated along with macOS these things sort themselves.
This is a generic warning only. You have to do nothing, 32-bit apps continue to work on both High Sierra & Mojave.
With the release of macOS 10.15 Catalina, applications will have to be 64-bit. App developers will issue updated apps if they want their apps to work on this newest macOS upgrade
32-bit app compatibility with macOS... - Apple Support
https://support.apple.com/en-us/HT208436
Check Your Apps and Prepare for a 64-bit World
https://www.stclairsoft.com/Go64/index.html
Locate all 32-bit apps in System Info
http://osxdaily.com/2018/03/06/find-32-bit-apps-mac/