Unhandled exception (6df38245)

Zeus version:
`1.5.2.21b875`

Firefox version:
`(69, 0)`

Geckodriver version:
`geckodriver-v0.18.0-linux64.tar.gz`

Error info:
```Traceback (most recent call last):
File "/root/zeus-scanner/var/search/selenium_search.py", line 268, in parse_search_results
tor=tor, batch=batch, xforward=forward_for
File "/root/zeus-scanner/var/search/selenium_search.py", line 82, in get_urls
browser = var.search.SetBrowser(agent=user_agent, proxy=proxy, tor=tor, xforward=xforward).set_browser()
File "/root/zeus-scanner/var/search/__init__.py", line 148, in set_browser
executable_path=whichcraft.which("geckodriver"))
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 154, in __init__
keep_alive=True)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 140, in __init__
self.start_session(desired_capabilities, browser_profile)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 229, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 297, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
WebDriverException: Message: newSession
```

Running details:
`Linux-5.2.0-kali2-amd64-x86_64-with-debian-kali-rolling`

Commands used:
`zeus.py -d "index of" inurl:wp-content/" -L 999 --show-success`

Log file info:
```2019-09-21 20:01:42,839;zeus-log;INFO;log file being saved to '/root/zeus-scanner/log/zeus-log-6.log'
2019-09-21 20:01:42,839;zeus-log;INFO;using default search engine
2019-09-21 20:01:42,839;zeus-log;INFO;starting dork scan with query '"index of" inurl:wp-content/"'
2019-09-21 20:01:42,840;zeus-log;WARNING;will not parse webcache URL's (to parse webcache pass -W)
2019-09-21 20:01:42,840;zeus-log;WARNING;only pulling URLs with GET(query) parameters (to pull all URL's pass -E)
2019-09-21 20:01:42,840;zeus-log;INFO;attempting to gather query URL
2019-09-21 20:01:42,840;zeus-log;INFO;setting up virtual display to hide the browser
2019-09-21 20:01:42,958;zeus-log;INFO;setting the browser
2019-09-21 20:01:52,394;zeus-log;ERROR;selenium_search.pyc failed to gather the URL from search engine, caught exception 'Message: newSession' exception has been logged to current log file
Traceback (most recent call last):
File "/root/zeus-scanner/var/search/selenium_search.py", line 268, in parse_search_results
tor=tor, batch=batch, xforward=forward_for
File "/root/zeus-scanner/var/search/selenium_search.py", line 82, in get_urls
browser = var.search.SetBrowser(agent=user_agent, proxy=proxy, tor=tor, xforward=xforward).set_browser()
File "/root/zeus-scanner/var/search/__init__.py", line 148, in set_browser
executable_path=whichcraft.which("geckodriver"))
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 154, in __init__
keep_alive=True)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 140, in __init__
self.start_session(desired_capabilities, browser_profile)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 229, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 297, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
WebDriverException: Message: newSession

2019-09-21 20:02:04,478;zeus-log;INFO;Zeus got an unexpected error and will automatically create an issue for this error, please wait
2019-09-21 20:02:04,478;zeus-log;INFO;getting authorization
2019-09-21 20:02:04,480;zeus-log;INFO;extracting traceback from log file
2019-09-21 20:02:04,480;zeus-log;INFO;attempting to get firefox browser version
```

Start with var/search/__init__.py at SetBrowser around line 148, then trace its caller in var/search/selenium_search.py at get_urls and parse_search_results. Reproduce the reported zeus.py command with the listed Firefox and geckodriver versions; done means the browser session starts successfully or the failure is handled without an unhandled exception.

Written by the indexing model from the issue text.