owen/jsinject: jsinject

jsinject

Owen Diffey dcb798982f Init - based on https://gist.github.com/danharper/8364399		3 lat temu
chrome	dcb798982f Init - based on https://gist.github.com/danharper/8364399	3 lat temu
firefox	dcb798982f Init - based on https://gist.github.com/danharper/8364399	3 lat temu