How to accepts SSL Cert in firefox browser?

#### What are you trying to achieve?
Automating application which accepts an SSL certificate before loading login page (2-way handshake)

#### What do you get instead?
Automated Firefox window is unable to fetch the SSL cert installed in browser and shows 400 error page

> Provide console output if related. Use `-vvv` mode for more details.
20:05:57.153 INFO - Binding default provider to: org.openqa.selenium.chrome.ChromeDriverService
20:06:36.911 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@3f3ca0a7
20:06:36.913 INFO - /session: Executing POST on /session (handler: BeginSession)
20:06:36.917 INFO - Capabilities are: Capabilities {browserName=firefox}
20:06:36.918 INFO - Capabilities {browserName=firefox} matched class org.openqa.selenium.remote.server.ServicedSession$Factory (provider: org.openqa.selenium.firefox.GeckoDriverService)
20:06:36.919 INFO - Capabilities {browserName=firefox} matched class org.openqa.selenium.remote.server.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
1508942197058 geckodriver INFO geckodriver 0.18.0
1508942197078 geckodriver INFO Listening on 127.0.0.1:4823
1508942197559 geckodriver::marionette INFO Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe with args ["-marionette"]
1508942198172 addons.xpi WARN Error parsing extensions state: [Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [amIAddonManagerStartup.readStartupData]" nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)" location: "JS frame :: resource://gre/modules/addo
ns/XPIProvider.jsm :: loadExtensionState :: line 1554" data: no] Stack trace: loadExtensionState()@resource://gre/modules/addons/XPIProvider.jsm:1554 < getInstallState()@resource://gre/modules/addons/XPIProvider.jsm:1589 < checkForChanges()@resource://gre/modules/addons/XPIProvider.jsm:3109 < start
up()@resource://gre/modules/addons/XPIProvider.jsm:2188 < callProvider()@resource://gre/modules/AddonManager.jsm:269 < _startProvider()@resource://gre/modules/AddonManager.jsm:739 < startup()@resource://gre/modules/AddonManager.jsm:906 < startup()@resource://gre/modules/AddonManager.jsm:3090 < obser
ve()@jar:file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/omni.ja!/components/addonManager.js:65
1508942199069 Marionette INFO Enabled via --marionette
[Child 11400] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346
1508942202706 Marionette INFO Listening on port 24667
1508942202906 Marionette DEBUG Register listener.js for window 4294967297
20:06:42.981 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:42.981 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing POST on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/url (handler: ServicedSession)
1508942203012 Marionette DEBUG Received DOM event "beforeunload" for "about:blank"
1508942204521 Marionette DEBUG Received DOM event "pagehide" for "about:blank"
1508942204522 Marionette DEBUG Received DOM event "unload" for "about:blank"
1508942204532 Marionette DEBUG Received DOM event "DOMContentLoaded" for "https://zeetraining.com/"
1508942204541 Marionette DEBUG Received DOM event "pageshow" for "https://zeetraining.com/"
20:06:45.112 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.113 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing POST on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/elements (handler: ServicedSession)
20:06:45.636 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.636 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing POST on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/elements (handler: ServicedSession)
20:06:45.666 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.667 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing POST on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/elements (handler: ServicedSession)
20:06:45.705 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.705 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing POST on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/elements (handler: ServicedSession)
20:06:45.740 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.GetLogTypes@d1229ec
20:06:45.741 INFO - /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/log/types: Executing GET on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/log/types (handler: GetLogTypes)
20:06:45.758 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.GetLogsOfType@752db15f
20:06:45.759 INFO - /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/log: Executing POST on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/log (handler: GetLogsOfType)
20:06:45.769 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.769 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing GET on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/screenshot (handler: ServicedSession)
20:06:45.843 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.844 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing GET on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/source (handler: ServicedSession)
20:06:45.922 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.922 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing DELETE on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605/cookie (handler: ServicedSession)
20:06:45.944 INFO - Found handler: org.openqa.selenium.remote.server.ServicedSession@4321fecd
20:06:45.945 INFO - Handler thread for session 33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (firefox): Executing DELETE on /session/33f7b7e9-c66b-4c63-9845-a6c7c12ec605 (handler: ServicedSession)
1508942205956 Marionette INFO New connections will no longer be accepted
[GFX1-]: Receive IPC close with reason=AbnormalShutdown
[GFX1-]: Receive IPC close with reason=AbnormalShutdown
20:06:46.656 INFO - Removing session org.openqa.selenium.remote.server.ServicedSession@4321fecd

> paste output here

> Provide test source code if related

```php
class FirstCest
{
// tests
public function checkLogin(AcceptanceTester $I)
{
$I->am('admin');
$I->wantTo('login to Training');
$I->amOnPage('/login');
$I->fillField("#email", "zeetrainingadmin");
$I->fillField("#password", "abc123");
$I->click('Login');
$I->see('Training');
}
}
```
### Details

* Codeception version: 2.3.6
* PHP Version: 7.1.6
* Operating System: Windows 8.1 x64
* Installation type: Composer
* List of installed packages (`composer show`)
behat/gherkin v4.4.5 Gherkin DSL parser for PHP 5.3
codeception/codeception 2.3.6 BDD-style testing framework
doctrine/instantiator 1.1.0 A small, lightweight utility to instantiate objects in PHP without invoking their constructors
facebook/webdriver 1.4.1 A PHP client for Selenium WebDriver
guzzlehttp/guzzle 6.3.0 Guzzle is a PHP HTTP client library
guzzlehttp/promises v1.3.1 Guzzle promises library
guzzlehttp/psr7 1.4.2 PSR-7 message implementation that also provides common utility methods
myclabs/deep-copy 1.7.0 Create deep copies (clones) of your objects
phar-io/manifest 1.0.1 Component for reading phar.io manifest information from a PHP Archive (PHAR)
phar-io/version 1.0.1 Library for handling version information and constraints
phpdocumentor/reflection-common 1.0.1 Common reflection classes used by phpdocumentor to reflect the code structure
phpdocumentor/reflection-docblock 4.1.1 With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.
phpdocumentor/type-resolver 0.4.0
phpspec/prophecy v1.7.2 Highly opinionated mocking framework for PHP 5.3+
phpunit/php-code-coverage 5.2.2 Library that provides collection, processing, and rendering functionality for PHP code coverage information.
phpunit/php-file-iterator 1.4.2 FilterIterator implementation that filters files based on a list of suffixes.
phpunit/php-text-template 1.2.1 Simple template engine.
phpunit/php-timer 1.0.9 Utility class for timing
phpunit/php-token-stream 2.0.1 Wrapper around PHP's tokenizer extension.
phpunit/phpunit 6.4.3 The PHP Unit Testing framework.
phpunit/phpunit-mock-objects 4.0.4 Mock Object library for PHPUnit
psr/http-message 1.0.1 Common interface for HTTP messages
psr/log 1.0.2 Common interface for logging libraries
sebastian/code-unit-reverse-lookup 1.0.1 Looks up which function or method a line of code belongs to
sebastian/comparator 2.0.2 Provides the functionality to compare PHP values for equality
sebastian/diff 2.0.1 Diff implementation
sebastian/environment 3.1.0 Provides functionality to handle HHVM/PHP environments
sebastian/exporter 3.1.0 Provides the functionality to export PHP variables for visualization
sebastian/global-state 2.0.0 Snapshotting of global state
sebastian/object-enumerator 3.0.3 Traverses array structures and object graphs to enumerate all referenced objects
sebastian/object-reflector 1.1.1 Allows reflection of object attributes, including inherited and non-public ones
sebastian/recursion-context 3.0.0 Provides functionality to recursively process PHP variables
sebastian/resource-operations 1.0.0 Provides a list of PHP built-in functions that operate on resources
sebastian/version 2.0.1 Library that helps with managing the version number of Git-hosted PHP projects
stecman/symfony-console-completion 0.7.0 Automatic BASH completion for Symfony Console Component based applications.
symfony/browser-kit v3.3.10 Symfony BrowserKit Component
symfony/console v3.3.10 Symfony Console Component
symfony/css-selector v3.3.10 Symfony CssSelector Component
symfony/debug v3.3.10 Symfony Debug Component
symfony/dom-crawler v3.3.10 Symfony DomCrawler Component
symfony/event-dispatcher v3.3.10 Symfony EventDispatcher Component
symfony/finder v3.3.10 Symfony Finder Component
symfony/polyfill-mbstring v1.6.0 Symfony polyfill for the Mbstring extension
symfony/process v3.3.10 Symfony Process Component
symfony/yaml v3.3.10 Symfony Yaml Component
theseer/tokenizer 1.1.0 A small library for converting tokenized PHP source code into XML and potentially other formats
webmozart/assert 1.2.0 Assertions to validate method input/output with nice error messages.
* Suite configuration:

```yml
# paste suite config here
actor: AcceptanceTester
modules:
enabled:
- WebDriver:
url: https://zeetraining.com
browser: firefox
desiredCapabilities:
acceptSslCerts: false
acceptInsecureCerts: true
- \Helper\Acceptance
```