Thank you!
Yes, it works with Blender, from the blender.org website.
But, before the release of version 2.79, blend4web worked with what is.
I have a Blender not from native Linux Mint repository. He from this: http://ppa.launchpad.net/thomas-schiex/blender/

When I turn on add-on, I get:

Traceback (most recent call last):
  File "/usr/share/blender/2.79/scripts/modules/addon_utils.py", line 331, in enable
    mod = __import__(module_name)
  File "/home/USER/.config/blender/2.79/scripts/addons/blend4web/__init__.py", line 85, in <module>
    exec(load_module_script.format(m))
  File "<string>", line 7, in <module>
  File "/home/USER/.config/blender/2.79/scripts/addons/blend4web/properties.py", line 27, in <module>
    exec(blend4web.load_module_script.format(m))
  File "<string>", line 7, in <module>
  File "/home/USER/.config/blender/2.79/scripts/addons/blend4web/interface.py", line 42, in <module>
    exec(blend4web.load_module_script.format(m))
  File "<string>", line 7, in <module>
  File "/home/USER/.config/blender/2.79/scripts/addons/blend4web/ui_render.py", line 28, in <module>
    exec(blend4web.load_module_script.format(m))
  File "<string>", line 7, in <module>
  File "/home/USER/.config/blender/2.79/scripts/addons/blend4web/server.py", line 26, in <module>
    import requests
ImportError: No module named 'requests'

Linux Mint 17.3
Blender 2.79