If a site does not have a Favicon, the tab in the browser does not display an image, as shown in this illustration.
In contrast, when a site has a Favicon, it appears in the browser tab, as shown here.
To add a Favicon to an Experience Manager site, there are several steps that you must perform. This article covers these steps.
To read this article, click https://helpx.adobe.com/experience-manager/using/AEM63_favicon.html.