Maybe there's no way for you to remote visitors FirFox, cuz it's not safe for the users. The best way is to alert the visitors on the old site that they should refresh the DNS cache. Find the option in firefox for "Clear Recent History" and then select everything and check all the boxes under details.
Aug 23, 2018 · Right now Mozilla is enforcing their users to activate the Cloudflare public DNS on their software, so when you install Firefox for the first time, or update your current version, you will start using the new 1.1.1.1 DNS servers. New Firefox versions will come with two privacy-first focused features: DNS over HTTPS (aka DoH) Apr 10, 2019 · Firefox users may configure DNS-over-HTTPS in the browser. Mozilla plans to make it the default in Firefox going forward; while that is beneficial overall, doing so comes with its own set of issues and concerns. Firefox will use the feature for DNS related activities and not the DNS configured on the computer. Summary. When a requested web page cannot be loaded, Firefox should display an error page that not only describes the problem, but which also presents the user with Dec 18, 2019 · Good news for Firefox users interested in turning on the browser’s DNS-over-HTTPS (DoH) privacy feature – they now have two providers to choose from.. The first, of course, is Cloudflare
Apr 07, 2020 · Firefox is now available in Flatpak, an easier way to install and use Firefox on Linux. Direct Composition is being integrated for our users on Windows to help improve performance and enable our ongoing work to ship WebRender on Windows 10 laptops with Intel graphics cards.
A more accurate description of the problem is that Firefox seems to be having problems with domain name lookups. No other application on this system is having any problems, and the DNS infrastructure appears to be functioning normally. That is why I believe it is a Firefox problem and not related to anything on the system or network level.
To disable DNS Prefetching: Type about:config in the address bar and press Enter Return . A warning page may appear. Click I accept the risk! Accept the Risk and Continue to Right-click Hold down the control key while you click in the list of preferences, select New , and then select Boolean .
May 10, 2018 · To reduce unnecessary DNS queries, our computers and even our browsers keep a cached copy of the DNS records. And although they get updated or renewed after intervals of time, one might need to manually flush the DNS cache so that the earlier cached resolutions can be deleted and based on the new DNS settings, the subsequent lookups are done. Jun 03, 2020 · Mozilla just released Firefox 77.0.1 to prevent DDoSing the DNS over HTTPS (DoH) providers selected automatically as part of a wider deployment test run of the standard. "Disabled automatic Feb 25, 2020 · Mozilla has announced that its Firefox browser has begun to roll out encrypted DNS over HTTPS by default for all users in the U.S., a major step in the push to fully encrypt all Internet traffic