If during the download of OS Endless 3.9.5 there is no Internet access, and then provide it for this laptop, then the Firefox browser (89.0.2) reports that it cannot display the website (any). Google Chrome shows Internet resources. If during the Endless download there is Internet access (for example, a Wi-Fi hotspot), then Firefox normally displays Internet resources. All Mozilla support recommendations for the case when all other browsers on this computer display the Internet, but Firefox does not, have followed. Did not help. How to make Firefox after turning on the Internet again, as it were, read in Endless that the Internet is already there, or force it to connect to the module that distributes the Internet? In order not to overload the entire operating system to work with the Internet through Firefox.