Issue:
If after installing the certificate you still get the message "Your connection to this site is not fully secure".
This typically happens when a website shares mixed content. Mixed Content is content on a secured site that is not secure. For a secured/encrypted website; its content such as text, images, videos, objects, scripts, link, iframe, etc… that is being delivered over HTTP instead of HTTPS.
Solution:
This test will help you to find out if you're affected: https://gf.dev/mixed-content-test
Once you runt the test, you will see the content that is being loaded over HTTPS
