When I try to connect to https://www.tribler.org in Firefox I get the following warning:
Your connection is not secure
The owner of www.tribler.org has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.
This creates a really bad impression for a website dedicated to software promoting privacy and anonymity !
Would it not be a good idea to configure https correctly on your site ? I notice another user asking the same question back in August 2015, your response makes reference to the cost of a certificate. Might I suggest using http://letsencrypt.org, it free !