anchor.diff:  |===
   | Image | VNC Image | Operadriver version | Opera version
   
  -| selenoid/opera:33.0 | selenoid/vnc:opera_33.0 | 0.2.2 | 33.0.1990.115 
  -| selenoid/opera:34.0 | selenoid/vnc:opera_34.0 | 0.2.2 | 34.0.2036.50 
  -| selenoid/opera:35.0 | selenoid/vnc:opera_35.0 | 0.2.2 | 35.0.2066.92 
  -| selenoid/opera:36.0 | selenoid/vnc:opera_36.0 | 0.2.2 | 36.0.2130.65 
  -| selenoid/opera:37.0 | selenoid/vnc:opera_37.0 | 0.2.2 | 37.0.2178.54 
  -| selenoid/opera:38.0 | selenoid/vnc:opera_38.0 | 0.2.2 | 38.0.2220.41 
  -| selenoid/opera:39.0 | selenoid/vnc:opera_39.0 | 0.2.2 | 39.0.2256.71 
  -| selenoid/opera:40.0 | selenoid/vnc:opera_40.0 | 0.2.2 | 40.0.2308.90 
  -| selenoid/opera:41.0 | selenoid/vnc:opera_41.0 | 2.27 | 41.0.2353.69 
  -| selenoid/opera:42.0 | selenoid/vnc:opera_42.0 | 2.27 | 42.0.2393.94 
  -| selenoid/opera:43.0 | selenoid/vnc:opera_43.0 | 2.27 | 43.0.2442.991 
  +| selenoid/opera:33.0 | selenoid/vnc:opera_33.0 | 0.2.2 | 33.0.1990.115
  +| selenoid/opera:34.0 | selenoid/vnc:opera_34.0 | 0.2.2 | 34.0.2036.50
  +| selenoid/opera:35.0 | selenoid/vnc:opera_35.0 | 0.2.2 | 35.0.2066.92
  +| selenoid/opera:36.0 | selenoid/vnc:opera_36.0 | 0.2.2 | 36.0.2130.65
  +| selenoid/opera:37.0 | selenoid/vnc:opera_37.0 | 0.2.2 | 37.0.2178.54
  +| selenoid/opera:38.0 | selenoid/vnc:opera_38.0 | 0.2.2 | 38.0.2220.41
  +| selenoid/opera:39.0 | selenoid/vnc:opera_39.0 | 0.2.2 | 39.0.2256.71
  +| selenoid/opera:40.0 | selenoid/vnc:opera_40.0 | 0.2.2 | 40.0.2308.90
  +| selenoid/opera:41.0 | selenoid/vnc:opera_41.0 | 2.27 | 41.0.2353.69
  +| selenoid/opera:42.0 | selenoid/vnc:opera_42.0 | 2.27 | 42.0.2393.94
  +| selenoid/opera:43.0 | selenoid/vnc:opera_43.0 | 2.27 | 43.0.2442.991
   | selenoid/opera:44.0 | selenoid/vnc:opera_44.0 | 2.27 | 44.0.2510.857
   | selenoid/opera:45.0 | selenoid/vnc:opera_45.0 | 2.27 | 45.0.2552.635
   | selenoid/opera:46.0 | selenoid/vnc:opera_46.0 | 2.27 | 46.0.2597.26
  
positive.code: 
  | selenoid/firefox:48.0 | selenoid/vnc:firefox_48.0 | 1.3.9 | 0.13.0 | 48.0.2 (page load timeout, native events and proxies don't work) .20+<.^|
  **Java, selenium-webdriver.js**: 3.4.0 and above
  **Python**: 3.5.0 and above 
  | selenoid/firefox:49.0 | selenoid/vnc:firefox_49.0 | 1.3.9 | 0.13.0 | 49.0.2 (page load timeout, native events and switching between windows don't work) 
  | selenoid/firefox:50.0 | selenoid/vnc:firefox_50.0 | 1.3.9 | 0.13.0 | 50.0.2 (page load timeout, native events, switching windows and proxies don't work) 
  | selenoid/firefox:51.0 | selenoid/vnc:firefox_51.0 | 1.3.9 | 0.14.0 | 51.0.1 (page load timeout, native events, switching windows and proxies don't work) 
  | selenoid/firefox:52.0 | selenoid/vnc:firefox_52.0 | 1.3.9 | 0.15.0 | 52.0.2 (page load timeout, native events, switching windows and proxies don't work) 
  | selenoid/firefox:53.0 | selenoid/vnc:firefox_53.0 | 1.3.9 | 0.16.0 | 53.0.2 (switching windows may not work)
  | selenoid/firefox:54.0 | selenoid/vnc:firefox_54.0 | 1.3.9 | 0.17.0 | 54.0.1 (switching windows may not work) 
  | selenoid/firefox:55.0 | selenoid/vnc:firefox_55.0 | 1.3.9 | 0.18.0 | 55.0.1 (switching windows may not work) 
  | selenoid/firefox:56.0 | selenoid/vnc:firefox_56.0 | 1.3.9 | 0.19.1 | 56.0.1 
  | selenoid/firefox:57.0 | selenoid/vnc:firefox_57.0 | 1.3.9 | 0.19.1 | 57.0 
  | selenoid/firefox:58.0 | selenoid/vnc:firefox_58.0 | 1.6.0 | 0.20.1 | 58.0
  | selenoid/firefox:59.0 | selenoid/vnc:firefox_59.0 | 1.6.0 | 0.20.1 | 59.0.1
  | selenoid/firefox:60.0 | selenoid/vnc:firefox_60.0 | 1.6.2 | 0.21.0 | 60.0.2
  
negative.code: | selenoid/firefox:27.0 | selenoid/vnc:firefox_27.0 | 2.40.0 | 27.0.1
  | selenoid/firefox:28.0 | selenoid/vnc:firefox_28.0 | 2.41.0 | 28.0
  | selenoid/firefox:29.0 | selenoid/vnc:firefox_29.0 | 2.43.1 | 29.0.1
  | selenoid/firefox:30.0 | selenoid/vnc:firefox_30.0 | 2.43.1 | 30.0
  | selenoid/firefox:31.0 | selenoid/vnc:firefox_31.0 | 2.44.0 | 31.0
  | selenoid/firefox:32.0 | selenoid/vnc:firefox_32.0 | 2.44.0 | 32.0.3
  | selenoid/firefox:33.0 | selenoid/vnc:firefox_33.0 | 2.44.0 | 33.0.3
  | selenoid/firefox:34.0 | selenoid/vnc:firefox_34.0 | 2.45.0 | 34.0.5
  | selenoid/firefox:35.0 | selenoid/vnc:firefox_35.0 | 2.45.0 | 35.0.1
  | selenoid/firefox:36.0 | selenoid/vnc:firefox_36.0 | 2.45.0 | 36.0.1
  | selenoid/firefox:37.0 | selenoid/vnc:firefox_37.0 | 2.45.0 | 37.0.2
  | selenoid/firefox:38.0 | selenoid/vnc:firefox_38.0 | 2.45.0 | 38.0.5
  | selenoid/firefox:39.0 | selenoid/vnc:firefox_39.0 | 2.45.0 | 39.0.3
  | selenoid/firefox:40.0 | selenoid/vnc:firefox_40.0 | 2.45.0 | 40.0.3
  | selenoid/firefox:41.0 | selenoid/vnc:firefox_41.0 | 2.45.0 | 41.0.2
  | selenoid/firefox:42.0 | selenoid/vnc:firefox_42.0 | 2.47.1 | 42.0
  | selenoid/firefox:43.0 | selenoid/vnc:firefox_43.0 | 2.53.1 | 43.0.4
  | selenoid/firefox:44.0 | selenoid/vnc:firefox_44.0 | 2.53.1 | 44.0.2
  | selenoid/firefox:45.0 | selenoid/vnc:firefox_45.0 | 2.53.1 | 45.0.2
  | selenoid/firefox:46.0 | selenoid/vnc:firefox_46.0 | 2.53.1 | 46.0.1
  | selenoid/firefox:47.0 | selenoid/vnc:firefox_47.0 | 2.53.1 | 47.0.1
  |===
  
  WARNING: Firefox 53.0+ images require Selenium client 3.4.0 or newer.
  