> It is a regular occurrence to hear about open source developers selling their browser extensions, only for their users to be exploited later on by the new owners. ... We are witnessing the failure of browser vendors to recognize the value of our labor and the important role it plays in a healthy browser ecosystem. So this is an interesting philosophical question - the market value of the extension is the value of "…
Can’t.
Take the developer of uBlock Origin and uMatrix, Raymond Hill, for example. He continues to refuse payment / donations.