Why might extensions not work in Mozilla Selenium profile?

Question

Python

Good afternoon, I'm working with python and selenium for the first time, I want to load a browser with a pre-prepared profile, but when loading, all extensions appear for a split second and disappear, but for example, the browser settings remain correct (from the profile), why can extensions disappear?

def open_Fire():
    print("Открытие Firefox")
    global spisok
    print("список прокси - ", spisok)
    ipport = spisok[0].split(":")

    ip = ipport[0]
    port = int(ipport[-1])

    #profile = webdriver.FirefoxProfile()
    profile = webdriver.FirefoxProfile('C:\\Users\\Sergey\\AppData\\Roaming\\Mozilla\\Firefox\\Profiles\\bna45nie.default-release')
    profile.set_preference("network.proxy.type", 1)
    profile.set_preference("network.proxy.http", ip)
    profile.set_preference("network.proxy.http_port", port)
    profile.set_preference("network.proxy.ssl", ip)
    profile.set_preference("network.proxy.ssl_port", port)
    profile.set_preference("network.proxy.ftp", ip)
    profile.set_preference("network.proxy.ftp_port", port)
    profile.set_preference("network.proxy.socks", ip)
    profile.set_preference("network.proxy.socks_port", port)
    profile.update_preferences()

    browser = webdriver.Firefox(firefox_profile=profile)

    try:
        browser.get('https://google.com')

Answer 1

Extensions must be loaded as xpi or zip file

profile.add_extension(extension="some_extension_name.xpi")