I can't connect to my site using Behat (but a browser is fine) - selenium

Question

I've just started playing around with Behat, and I was loving it. Then I shut down my computer and went home for the day and when I came back, nothing worked for me any more. I've been trying to trouble-shoot this, but looks like the configurations vary so widely, I can't find anything that works for me. I'm getting the following error
Given I am on the homepage # Drupal\DrupalExtension\Context\MinkContext::iAmOnHomepage()
Could not open connection: Curl error thrown for http POST to http://localhost:4444/wd/hub/session with params: {"desiredCapabilities":{"tags":["rio","PHP 5.5.9-1ubuntu4.9"],"browser":"firefox","version":"14","ignoreZoomSetting":false,"name":"Behat feature suite","browserName":"firefox"}}
The requested URL returned error: 500 Server Error (Behat\Mink\Exception\DriverException)
I've got my behat.yml file setup as such:
default:
default:
suites:
default:
contexts:
- FeatureContext
- Drupal\DrupalExtension\Context\DrupalContext
- Drupal\DrupalExtension\Context\MinkContext
extensions:
Behat\MinkExtension:
base_url: http://localhost:80/vic
goutte: ~
default_session: selenium2
browser_name: 'firefox'
selenium2:
capabilities: { "browser": "firefox", "version": "14"}
javascript_session: selenium2
Drupal\DrupalExtension:
blackbox: ~
drush:
root: /var/www/html/vic
api_driver: 'drupal'
drupal:
drupal_root: '/var/www/html/vic'
Like I said, this was previously working just fine. Now I don't know why it stopped. The error is weird to me too. the base url doesn't seem to be registering and I have no idea why it's pulling up port 4444 or going to the folder structure wd/hub/session.
Some background. I'm running this on my local machine on a local environment. I'm on a Linux box. The base url works for me in my browser, but Behat can't seem to reach it, and it's adding a weird port (should be 80), and path. It worked the other day, and nothing has changed other than a reboot (so I need to start up a service or something)?

Answer 1

Found the answer. Make sure selenium is running first.
java -jar selenium-server-standalone-2.45.0.jar (make sure your version is right)
Once it's running it'll give you connection info, make sure that matches in your behat.yml
extensions:
Behat\MinkExtension:
base_url: http://localhost:80
goutte: ~
javascript_session: selenium2
default_session: selenium2
browser_name: 'firefox'
selenium2:
capabilities: { "browser": "firefox", "version": "14"}
wd_host: http://127.0.0.1:4444/wd/hub
^^ do that by pointing the wd_host to the selenium instance