Mozilla rolls out DNS over HTTPS by default for U.S. Firefox users
Mozilla is activating DNS over HTTPS (DoH) by default for all Firefox users in the U.S., nearly two years after the company first started testing the protocol.
DoH, for the uninitiated, is a standard proposed by the Internet Engineering Task Force (IETF) that promises improved privacy and security by preventing third-parties — such as internet service providers (ISPs) — from seeing what websites users are visiting. As things stand, when someone enter a web address into their browser’s address bar, a request is sent across the internet for the IP address associated with that URL — this is traditionally done in plain text, which makes it prone to eavesdropping or manipulation. With DoH, however, this broadcasts the domain name using an “HTTPS” connection to encrypt the data — this makes it harder for outsiders to see what websites users are trying to access.
The DoH protocol isn’t without its controversies though. While its intentions may be to thwart bad actors, critics argue that it will also break many of the filtering systems used to prevent easy access illegal content, such as terrorist materials, child abuse imagery, and even optional parental control tools. Indeed, many internet blocking services offered by ISPs rely on the same methods that bad actors use — essentially, hijacking domain name system (DNS) lookups. The Internet Service Providers Association (ISPA), a U.K. body representing ISPs in the country, last year declared Mozilla an “internet villain” for its support of DoH, and Mozilla later announced that it would not activate DoH by default in the U.K. until there was “further engagement with public and private stakeholders”.
It’s worth noting here that Google is also currently in the process of implementing DoH in Chrome, and as of Chrome 78 which was launched last year the internet giant has used DoH for some users when certain criteria is met.
While Mozilla has been testing DoH in Firefox for some users in recent months, from today the big rollout begins and will continue over the next few weeks to “confirm no major issues are discovered,” according to Selena Deckelmann, VP for Firefox desktop product development.
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