Created attachment 369874 [details] Reduced test case. Steps to reproduce the problem: In CSS, set `-webkit-hyphens: auto;`. What is the expected behavior? Proper nouns, i.e. names, in English should never be hyphenated. If, for some reason, they do need to be hyphenated, that should be the edge case, not the other way around. What went wrong? Proper nouns get hyphenated. See the reduced test case. Did this work before? No Does this work in other browsers? No Chrome has the same problem: https://bugs.chromium.org/p/chromium/issues/detail?id=963039&can=2&q=hyphen%20proper%20nouns Firefox currently has the same problem, but has opted to fix it by not hyphenating capitalized words (based on language; languages like German would still hyphenate capitalized words by default). This fix will be coming in Firefox 68: https://bugzilla.mozilla.org/show_bug.cgi?id=1550532 Unsure about Edge, but Edge is now using Blink, so I expect it will be the same as Chrome. Hyphen support is uniformly bad across all browsers, but they should be progressive enhancements. As it stands, turning on hyphens degrades the quality of the content and hyphenating proper nouns is the primary reason for that.
https://github.com/w3c/csswg-drafts/issues/3927
<rdar://problem/50826531>
This issue has been addressed in Firefox 68. It no longer hyphenates capitalized words.