Shulou(Shulou.com)11/24 Report--

CTOnews.com news on January 3, according to users' feedback to Mozilla Bug, Firefox 110Firefox has encountered a strange problem. When accessing BestBuy.com, it says "your browser is no longer supported, please download the latest version of Chrome, Firefox, Microsoft Edge".

A survey of Firefox Firefox developers found that the problem may be due to a misreading of the browser's UA (User Agent) user agent string.

The UA information for Firefox 110is as follows:

The UA information for Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:110.0) Gecko/20100101 Firefox/110 Microsoft IE 11 is as follows:

Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) some like Gecko websites only check whether the rv:11* matches when checking whether the browser supports it, that is, rv:110.0 and rv:11.0 are considered to be the same content, so this strange problem arises when Firefox 110is regarded as Microsoft IE 11.

CTOnews.com learned that Firefox developers have frozen rv:110.0 and are temporarily replacing it with rv:109.0, which will not be a problem when Firefox version 120 (rv:120.0) is released on September 25, 2023.

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