The Surfeasy extension in Opera is not working in private mode. It's fine in regular mode, but in private mode no sites will load and the page just displays:
Authentication credentials required.
Version info is below:
Version information Version: 41.0.2353.46 - Opera is up to date Update stream: Stable System: Mac OS X 10.12.1 64-bit Browser identification Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36 OPR/41.0.2353.46