How to run chrome plugin on Unix platform (ubuntu 15)?

Question

Cryptography

In general, we need an EDS on the frontend, I was told to read about CryptoPRO.
I tried to install the plugin, I'm developing it myself on Ubuntu:
cpdn.cryptopro.ru/default.asp?url=content/cades/pl...
I tried to do it step by step:
1. The plugin requires the installed CryptoPro CSP version 4.0
Downloaded from here: cryptopro. ru/products/csp/downloads#latest_csp40
CryptoPro CSP 4.0 for Linux (x64, deb)
As a result, there are a lot of deb packages in the archive, I launched
installation 2 via sudo ./install.sh
. Next, it was written to install cprocsp-rdr-gui-gtk I
found such a file in the unzipped folder and installed
cprocsp-rdr-gui-gtk-64_4.0.0-4_amd64.deb
3. Download and unzip the archive cades_linux_ia32.zip or cades_linux_amd64.zip
This case was downloaded here: www.cryptopro.ru/sites/default/files/products/cade... Unzipped
there and there were several files
cprocsp-pki-2.0.0- cades.rpm
cprocsp-pki-2.0.0-plugin.rpm
I ran them through alien and installed these deb packages
4. For the Chrome (Chromium) browser, the plug-in extension is installed automatically when the browser is restarted.
Link: https://chrome.google.com/webstore/detail/cryptopr...

5. Restart your browser.
6. Go to the demo page with the CAdES BES signature, CAdES X LONG signature example, or the XML signature example.
Came here:www.cryptopro.ru/sites/default/files/products/cade...
As a result, he writes:

And by the way, if you run: chrome://plugins/
I don't have anything like that there

What should I do? Does anyone know how to install this plugin?