Thanks for sharing, never heard that iobit has own antivirus
Anyway you could add DNS like Norton or Neustar
Https everywhere is kinda useless
I dont know how stable extensions are if you install them from chrome web store to opera, but i would switch ghostery away its just doing same things as nano does
Like going for tunnelbear + nano defender ( over nanoblocker) > privacy possum > privacy badger > ghostery
You barely benefit from ghostery right now
Check this thread; post #152 from evjl rain for nano adblocker settings
Q&A - [Updated 7/6/2018] Browser extension comparison: Malwares and Phishings