Write once run anywhere browser plugin tool/framework/language?

问题

I'm looking to create a browser plugin which would run in all of the major browsers, the only problem is that it seems I have to re-create the plugin in every browser. Is there some tool or framework or language I can write a plugin with where it will automatically work on all major browsers?

All I need the button to do is scrape webpage content off the active page and from a few of the linked pages, then send it to a program with sockets or named pipes.