Unhandled exception (02b3b13c)

Zeus version:
`1.5.2.21b875`

Firefox version:
`failed to start`

Geckodriver version:
`geckodriver-v0.19.0-linux32.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: Failed to start browser /usr/bin/firefox: other os error
```

Running details:
`Linux-5.3.0-kali2-686-pae-i686-with-debian-kali-rolling`

Commands used:
`zeus.py -d itemDesc.php?CartId= -s`

Log file info:
```2020-01-02 20:33:10,722;zeus-log;INFO;log file being saved to '/root/zeus-scanner/log/zeus-log-13.log'
2020-01-02 20:33:10,723;zeus-log;INFO;using default search engine
2020-01-02 20:33:10,723;zeus-log;INFO;starting dork scan with query 'itemDesc.php?CartId='
2020-01-02 20:33:10,724;zeus-log;WARNING;will not parse webcache URL's (to parse webcache pass -W)
2020-01-02 20:33:10,724;zeus-log;WARNING;only pulling URLs with GET(query) parameters (to pull all URL's pass -E)
2020-01-02 20:33:10,725;zeus-log;INFO;attempting to gather query URL
2020-01-02 20:33:10,729;zeus-log;INFO;setting up virtual display to hide the browser
2020-01-02 20:33:10,890;zeus-log;INFO;setting the browser
2020-01-02 20:33:13,232;zeus-log;ERROR;selenium_search.pyc failed to gather the URL from search engine, caught exception 'Message: Failed to start browser /usr/bin/firefox: other os error' 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: Failed to start browser /usr/bin/firefox: other os error

2020-01-02 20:33:26,179;zeus-log;INFO;Zeus got an unexpected error and will automatically create an issue for this error, please wait
2020-01-02 20:33:26,180;zeus-log;INFO;getting authorization
2020-01-02 20:33:26,184;zeus-log;INFO;extracting traceback from log file
2020-01-02 20:33:26,184;zeus-log;INFO;attempting to get firefox browser version
2020-01-02 20:33:26,205;zeus-log;ERROR;failed to run firefox
```

Start with var/search/__init__.py at set_browser and trace its callers in var/search/selenium_search.py, especially get_urls and parse_search_results. Reproduce the Firefox startup failure with the reported command and environment, then verify that the search flow no longer raises the shown WebDriverException.

Written by the indexing model from the issue text.