Hi Stefan, what happens when you try to load LinkedIn? Have you tested in a private window (Command+Shift+P) or in Firefox's Troubleshoot/Safe mode? More info: [[Diagnose Firefox issues using Troubleshoot Mode]]. ---- Around 3 weeks ago, a user reported being unable to log in to LinkedIn, getting the blue progress bar indefinitely. We weren't able to get to the bottom of it. You can read the troubleshooting and console checking suggestions in that thread for reference: https://support.mozilla.org/questions/1337162