I’m working on dramatically expanding one of my existing add-ons, so I’m looking for a way to monetize it. The core feature of my extension opens a page in a popup window that the user interacts with. I was looking into placing a Google Adsense slot on that page.
Is Google Adsense allowed or will it trigger an error when I attempt to upload it to AMO?
I suggest you carefully read the Add-on Policies for the dos and don’ts when it comes to user privacy, security, and choice. Having said that, advertising in add-ons isn’t forbidden. You just need to be careful on how you go about it.