https://www.mozilla.org/en-US/firefox/103.0/releasenotes

罪魁祸首在于这一句

Windows' "Make text bigger" accessibility setting now affects all the UI
and content pages, rather than only applying to system font sizes.

显然，Mozilla的工程师搞砸了

修复方法如下：

about:config

选择我知道风险

browser.display.os-zoom-behavior

修改为0

立即就好了

来源： https://www.askvg.com/fix-ui-scaling-and-large-fonts-issues-in-firefox-103-and-later-versions/

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