Some basic SSL questions with Jamroom hosting
Jamroom Hosting
If you click the yellow lock it will tell you what the issue is:
https://support.mozilla.org/en-US/kb/mixed-content-blocking-firefox?redirectlocale=en-US&as=u&redirectslug=how-does-content-isnt-secure-affect-my-safety
Its saying "this page has some images that start with http:// but they should all start with https://".
The image its complaining about is a picture of a horse.
https://pmp-art.com/upimg/image/upimg_file/4301/512
The image IS on an HTTPS url, its just that the link to it points to http. very very insignificant. If the lock image is important to you, make sure you get all your URL's correct.