[luckys]

With Ublock Origin at least, you can whitelist websites that you want to see ads on.

[throwawaygmbno]

With Ad Nauseum, the extension destroys your ad profile by clicking on all or nearly all of the blocked ads. The only people that lose anything are the companies.

[crtasm]

Yes, the large blue "power" icon in the menu turns uBlock off for the current site.