This may be an insanely stupid idea, but, as sort of a thought experiment: what would the fallout be if, say, Mozilla changed their license on Firefox to disallow the usage of their browser by government representatives and associated contractors unless they have a viable, open internet policy in their country? Maybe even restrict future updates to existing Firefox builds to require the same license change?
Might cause some significant headaches as they can't update to the latest IE on likely most of their systems and Chrome has too much Google functionality built into it that, I believe, they'd have to use Chromium.
Like I said, probably a dumb idea but I wanted to throw it out there as a thought exercise because I'm curious if something like this could be effective, much like the original internet blackout was.