I have an iMac 27" 2019 running Catalina latest version. I cannot upload photos to websites.
When a website 'upload' button is clicked, I used to be able to click on 'photos' or 'pictures' or other files and click 'choose' .
Then the file would be uploaded to the required site.
This no longer happens.
I click on a file such as 'photos' to upload and a window opens with nothing in it.
An instruction says 'open photos to upload' but when I open photos there is no link between the photos app and the upload window to the website.
It is impossible to upload the way I used to do.
What is going on and why is it now impossible to do this?
iMac 27″, macOS 10.15