I would recommend enabling Chrome extensions:
https://addons.opera.com/en/extensions/details/install-chrome-extensions/
Then getting my extension from the Chrome store:
https://chrome.google.com/webstore/detail/new-tab-start-page/mjfahldkpjhcnfbbmdhpjolcjpcfhcpj
I had one published in Opera store but as mentioned above, it was removed.
I even tried publishing a version that doesn't change the new tab page,
but I didn't even get a response about it being reviewed or anything.
Opera extension publishing has become a nightmare ...
