I do not know for sure and they are always subject to changes in their policies. You would have to check out the websites you are interested in to find out. Look for their payment policies or their regular policies as that may answer the question. In addition, you can look at their terms and conditions or FAQ’s. If that doesn’t tell you, look for their contact information so you can ask them directly.
Inboxdollars does not tell you this – you have to find it on your own. After uninstalling Firefox 54, and installing this version required, the issue with those partner ads still persist. I am still seeing the majority of ads as inboxdollars offers.. So I guess this means I will have the “feature” disabled again. Despite screenshots of the ads, showing them what I am seeing it is being blamed on some security setting, adblocker, or those plugins not being enabled. Rather than checking with their site, or the partner and checking their own ad rotations. When an ad starts to play sometimes it just vanishes and an inboxdolls offer pops up.