Advertising need somewhere to show.
0. Embed your advertisement in the page is forbidden.
1. Opening of extensions your web page with the spinning on it is, if the extension opens a tab in the browser.
2. If there is a popup window of the extension, when you click on the icon then embed the banner that is loaded through an IFrame from your website. Grey way, as banners advertisers approve of the website, not the extension.
In both cases, you need to have the website approved by the advertising system.
3. Donation through the Paypal link in the popup window. If users are mainly from Europe/USA, and the audience is expanding constantly and is growing well, then a couple of cups of coffee a month to collect ).
3. To work with affiliate network. I only know one (who knows other similar networks, also throw in a comment link): mixmarket.biz
, but worked with her for a very long time. For expansion it is necessary to use a Deep Link (mixmarket.biz/webmasters/faq/uni/),
then you can do without your site.