Dimonchik

driver.manage().getCookies();   // Return The List of all Cookies
driver.manage().getCookieNamed(arg0);  //Return specific cookie according to name
driver.manage().addCookie(arg0);   //Create and add the cookie
driver.manage().deleteCookie(arg0);  // Delete specific cookie
driver.manage().deleteCookieNamed(arg0); // Delete specific cookie according Name
driver.manage().deleteAllCookies();  // Delete all cookies

service_args = [
        '--proxy=192.168.0.1:3128',
        '--proxy-auth=login:pass'
]

from selenium import webdriver
from PIL import Image

fox = webdriver.Firefox()
fox.get('http://toster.ru/')

# now that we have the preliminary stuff out of the way time to get that image :D
element = fox.find_element_by_id('hlogo') # find part of the page you want image of
location = element.location
size = element.size
fox.save_screenshot('screenshot.png') # saves screenshot of entire page
fox.quit()

im = Image.open('screenshot.png') # uses PIL library to open image in memory

left = location['x']
top = location['y']
right = location['x'] + size['width']
bottom = location['y'] + size['height']


im = im.crop((left, top, right, bottom)) # defines crop points
im.save('screenshot.png') # saves new cropped image