Now this may appear a stupid question. Now I cannot delete the browser history. When you click "go to web address" if you delete the current web address it comes up with a rather long list of websites that I've manually written in, clearing all privacy data DOES NOT clear it.

Thoughts? I mainly use opera, but there are one or two dodgy addresses in there which I'd rather not pass on to the new owner!

Sorry picture is rubbish, not from my phone obviously
https://cdn.geekzone.co.nz/imagessubs/blog7d4ba7d5821b04470ab2b33044f40ded.jpg