-Tommy-

Thanks for all your replies. I figured out what the problem is. It looks like a bug in Firefox because I had the add.on sitting in the overflow toolbar menu and since I moved it back everything is good. Same goes for a few other add-ons like "uBlock Origin" for example. So it's definitely a Firefox problem. Thanks again.

That doesn't help. The problem is present for a couple of days already. I uninstalled the add-on and reinstalled it but still the same problem.

Windows 10 Pro x64 Screen Resolution: 1920x1080 Firefox version: 77.0.1 x64 - Malwarebytes Browser Guard Add-on version: 2.2.3 Please let me know if you need more details. Thank you.

The Mailwarebytes Browser Guard Firefox Add-on does not display correct. It displays correct in Google Chrome on the same PC but not in Firefox. How to fix this ? Please see attached screenshots: