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This repo contains an extension for Chromium and FireFox that helps to bypass censorship in Russia: WebStore | Sources.
This extension uses pac scripts, one of which (anticensority) is generated by this pac-generator.

1. Chrome Web Store
2. Chrome Web Store (MINI)
3. Microsoft Edge Add-ons
4. Microsoft Edge Add-ons (MINI)
5. FireFox Add-ons (Beta)
6. Opera: сначала установщик расширений из WebStore (от команды Opera), затем см. пункты 1 и 2 выше.
7. Пакеты для автономной (offline) установки: https://github.com/anticensority/runet-censorship-bypass/releases.

Из-за блокировок адресов Google расширение может не устанавливаться из WebStore. Подробности и способы установки см. https://github.com/anticensority/runet-censorship-bypass/wiki/Автономная-установка-расширения.

See my arguments against censorship (ru)

Looking at how Russian government distorts TV and blocks critics of Putin, I decided to write an anticensorship extension for Chromium before they strike me first.

0. PAC script is a JavaScript file, triggered on every URL request, which says browser which proxy to use if any for this particular URL.
1. The Chrome Extension sets PAC script in browser settings and keeps it synced with PAC script on the server (offering Antizapret (hosted on a dedicated server) or Anticensority (hosted on GitHub)).
2. On every request PAC script checks if host is blocked or if its IP is blocked.
3. If address is blocked PAC script returns proxy server to the browser. Antizapret PAC-script uses its own proxy servers and Anticensority PAC-script uses local Tor.
4. PAC scripts on servers are updated periodically from https://github.com/zapret-info/z-i.

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