I use a number of web extensions. I love them. I also don’t pay for any of them. I know that there are thousands of these things, so how do they make money?
Been working with startups for more than 4 years, building goldenhour.co
Last updated on June 16th, 2017
Browser extensions are generally made to serve one or more of the following purposes...
A SAAS business makes browser extension as part of their service offering (eg., Evernote, Wunderlist). These businesses make money by selling the service
An individual or a web development company might make an extension as a side project to beef up their portfolio. This could serve as a medium for getting new clients
There are also paid extensions on the Chrome web store. So this is a direct monetisation strategy
You could setup ads inside the extension's UI somewhere. I haven't seen any extension with ads yet. Adsense is a standard ad platform, but they are still working on providing an implementation for browser extensions