Is this about the login form ? The Web Console shows two broken images that give a 403 not found error and this makes Firefox show the ''alt'' text. *https://ubsst.ca-collaboration.com/idp/resources/img/.png You can right-click and select "Inspect" to open the built-in Inspector with this element selected. *https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/open_the_inspector/ *https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/examine_and_edit_html/