spreadprivacy[.]com/browser-privacy-protection/
This is a browser extension to block trackers that the browser itself can't block...
... to really stop a cross-site tracker, the kind that tries to track your activity from site to site, you have to prevent it from actually loading in your browser in the first place. This is a critical blocking feature that we provide in our all-in-one privacy browser extension...
In Edge & Chrome the extension changes the default search engine to DuckDuckGo -- in Firefox Google Search remains. There isn't an extension for Opera, but using the "Install Chrome Extension" extension it can be installed, though may not function completely like it's supposed to, and Google remains as the search provider.