the container breaks the facebook website, the blue bar at the top, the links on the left hand side, and the chat box that opens up at the bottom do not show up correctly. - Update: the problem has actually shown up since I restarted the browser and re-enabled it, so I think the problem is with the addon
If you have other privacy containers installed, be aware that they might take priority over some of the FB CDN assets, and you will get a frankenstein page. Try to turn off other add-ons that control FB cookies. I've logged-in to facebook just now, and tried to reproduce to issue your'e describing. I'll look to see if it is PC-specific.
