According to their forum the extensions are back online in Russia: https://discourse.mozilla.org/t/the-censorship-circumvention-extension-has-disappeared-from-the-russian-version-of-mozilla-addons/130914/38
Not sure why, if true. I doubt Russia is making up a large chunk of their economic funding.
deleted by creator
From the article:
The Intercept verified that all four add-ons are blocked in Russia. If the webpage for the add-on is accessed from a Russian IP address, the Mozilla add-on page displays a message: “The page you tried to access is not available in your region.” If the add-on is accessed with an IP address outside of Russia, the add-on page loads successfully.
deleted by creator
Yes, you’re right about that.
Weak
The extensions should be back online: https://discourse.mozilla.org/t/the-censorship-circumvention-extension-has-disappeared-from-the-russian-version-of-mozilla-addons/130914/38