Closing Threads and the chrome window it spawned from Tkinter close button

[law]

from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager
import time
import threading
from threading import *
from tkinter import *

def script1():
        root = Tk()

        #Displays some widgets and Texts
    
        def on_closing():
                #Looking for away to close all Threads at this point, also close the chrome window spawned by script2
                 
                root.destroy()
        root.protocol("WM_DELETE_WINDOW", on_closing)

        root.mainloop()

def script2():
    driver = webdriver.Chrome(ChromeDriverManager().install())
    #driver.maximize_window()
    driver.get("https://google.com/")
    time.sleep(8)                          
    while True:                          
         #Do some web scrapping
         time.sleep(60)


if __name__ == "__main__":
        # creating thread
        t1 = threading.Thread(target=script1, args=())
        t2 = threading.Thread(target=script2, args=())

        
        # starting thread 1
        t1.start()
        # starting thread 2
        t2.start()

        
        t1.join()
        
        t2.join() 

Hello Dev, I have the above code structure on which am trying to figure out a way of terminating/closing all the Threads by simply clicking the close button on the Tkinter Window.
At the moment clicking the close button only terminates Thread1 while I want it to terminate both Threads.Kindly help me figure it out