Did you know that if you’re using the FaceBook “Like” button on your website, you may be losing visitors who use Internet Explorer?
Recently, there have been reports that due to an update by Facebook, sites that use this button require their visitors to download an external file. (see image)
A possible solution: look for the script code that connects to the FaceBook Java script file. Then change the url in the “src” from “http:” to “https:” everywhere you have this script.
There are reports that this may not work for everyone. It worked for us. Good luck!