Prevent browser automatically launched when join to open wifi How to prevent browser to automatically launched when I join to a wifi network with captive portal? i.e. with note 3
Follow the below steps for prevent the auto launch browser.


Go to Settings > WiFi settings  
Long-press on Connection  
Select "Modify network config"  
Check the "Show advanced options" box.  
Select proxy settings to Manual  
Proxy host name , input the value from 192.168.1.1 to 192.168.1.225  
Proxy port = input one of them "8080" , "3128" , "80"  
Press the "Save".  
Turn wifi off and the On, you will not see the Popup browser.  
Now repeat the steps from 1 ~ 4  
And revert back the proxy settings to "None". 


It's Done. You will be fine with this network.