there are often times when I go to websites, usually when I'm logging in or signing up for an account, where they have a pop-up window for me to enter in the information, which usually also includes a captcha, but for some reason I am unable to scroll up or down, and I'm unable to access a submit button as well, therefore unable to complete the process.

this is on my Kyocera e6920 AT&t version 6.103at with Android 10 and a updated version of Firefox.