First, could you make sure Firefox isn't using "High Contrast" mode -- the following article has the steps: [[Disable high contrast mode in Firefox]]. Any difference if you reload the page bypassing the cache -- either: * Shift+click the Reload button on the toolbar * Press Ctrl+Shift+R If the page content is still incomplete, could you check whether Firefox's Tracking Protection feature is blocking anything on the site? The shield icon toward the left end of the address bar usually turns a bit purplish when content is blocked. Click the icon to learn more or make an exception. See: [[Enhanced Tracking Protection in Firefox for desktop]].