Can't connect to Arachni Proxy on EC2 AWS instance

Created by: AmandaBSobrinho

I'm running arachni with the proxy plugin on an Amazon EC2 instance. This is the command I run:

arachni https://example.com --plugin=proxy:port=8080,bind_address=machine_IP

On machine_IP, I put the IP that I get when running ifconfig on the Amazon Machine. The proxy starts running OK on the Amazon Machine.

I want to use my local machine's Firefox browser to access the website I'd like to test, so I configure it to use the Amazon Instance's Arachni proxy by goig to Connection preferences, and setting the Proxy HTTP to the AWS machine global IP address, the one I obtain when running a dig command using the machine FQDN. I set the port to 8080 and that's it with Firefox proxy configuration.

Then, I try accessing https://example.com, but I get the "MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE " error on Firefox. I tried setting my local timezone to UTC (the same in which the Amazon Instance is), but the error keeps happening. I already have imported the Arachni certificate to Firefox, so it has nothing to do with that.

What am I doing wrong?