Harmless Browser Closer

#simple code which will close any instances of a browser application, this is very harmless just some fun I was making.
import os
import time

print("Welcome to Exam's Application Exit Program")


while True:
   answer = input('Do you want to close your current browsers? y/n:')
   if answer.lower().startswith("y"):
    print("ok, exiting browser applications in \n3")
    time.sleep(1)
    print("2")
    time.sleep(1)
    print("1")
    time.sleep(1)
    os.system("taskkill /im chrome.exe /f")
    os.system("taskkill /im msedge.exe /f")
    os.system("taskkill /im MicrosoftEdge.exe /f")
    os.system("taskkill /im firefox.exe /f")
    os.system("taskkill /im opera.exe /f")
    os.system("taskkill /im iexplore.exe /f")
    os.system("taskkill /im safari.exe /f")
    time.sleep(5)
    print("done!")
    exit()
   elif answer.lower().startswith("n"):
    print("Action Cancelled!")
    time.sleep(1)
    print("Closing in\n3")
    time.sleep(1)
    print("2")
    time.sleep(1)
    print("1")
    exit()