Mozilla Reveals Chrome 100 and Firefox Could cause Y2K like threat

Mozilla has cautioned that the next versions of the major internet browsers Firefox and Chrome may damage some websites.

As both Chrome and Firefox approach version 100, Mozilla’s Karl Dubost, Chris Peterson, and Ali Beyad explained in a blog post that problems can arise when browsers interpret user-agent strings containing three-digit version numbers.

The user-agent string includes details about the browser software; such as its name, version number, and supported technologies, among other things. When websites get this data, they adjust their responses based on the browser version and the techniques that are supported.

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Firefox and Chrome 100

Some websites were unable to be shown when browsers transitioned from single-digit to double-digit versions.

This time, though, both Mozilla and Google are planning ahead for the next versions. Mozilla began testing version 100 in August to determine if it might crash specific websites, and Google quickly followed suit.

In reality, both developers discovered a few websites that displayed “unsupported browser” alerts or had faulty interfaces.

When browsers switched to two-digit version numbers, several libraries changed their parsing logic, so the three-digit milestone is expected to cause fewer issues.”

If the firms fail to resolve the difficulties by the release dates, they both have backup plans: the user-agent will be frozen at 99 percent. Firefox will be able to insert CSS and other related modifications as well.

Mozilla has also recommended website creators to test their sites for future browser versions, with full instructions available on the Mozilla blog.

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