Alright, I've tried going to a few websites and crashing some more :p Is there a way to tell that something has been sent out?
Yeah I'd done all of the steps of completely uninstalling Opera and all but to no avail. Sometimes I feel like this is an OS X 10.11.3 issue, as I had other applications (unrelated to Opera) fail on me or lose certain functionality. I hope it gets resolved somehow.