I have this issue continuously.. even when I havent updated anything..
Im assuming its a bug with the browser as it happens too often and no one seems to have a genuine answer (other than clear your cookies or reinstall the browser)..
At the end of the day.. Sometimes it works sometimes it doesnt which I hardly think is a fault of your own.. I have other issues with the browser which are intermittent and that no one seems to have an answer for..
Nether the less, I still use it lol..