And how exactly does it help to stop the war, if a website decides to block visitors from Russia?
Are you asking how sanctions work?
If so, and in this case; by blocking tools to circumvent said sanctions, in order to increases pressure on the Russian people by removing luxuries like access to the global market and its products and services (like Facebook)
@iamada this doesn't answer why the same extensions were not removed by Google, of all things.
And "pressure on the Russian" people only causes frustration directed to the ones who imposed such restrictions.
By the way, Facebook was blocked by Russia, it has nothing to do with sanctions.