In the link https://code.google.com/archive/p/redfire/downloads is available 0.3.2 version? The last update in the changelog is January 9th 2013. Is there any other version more up-to-date and secure for this?
No, Red5 was discontinued by its author.
The plugin has a chance to come back in the future?
No, it was based on flash as far as i remember.