> browser/chrome/ja/locale/browser/browser.dtd:<!ENTITY tabCmd.label "新しいタブ"><!-- 表示カ所によりアクセスキーが異なる --> That's a comment outside of the entity, it the parser throwing for any content in the DTD file? All the examples mentioned in bug 1548990 have `<` in the source strings, and some of them are not in use in Nightly (Panic button was migrated to Fluent in bug 1495861).
Bug 1539759 Comment 11 Edit History
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> browser/chrome/ja/locale/browser/browser.dtd:<!ENTITY tabCmd.label "新しいタブ"><!-- 表示カ所によりアクセスキーが異なる --> That's a comment outside of the entity, it the parser throwing for any content in the DTD file? All the examples mentioned in bug 1548990 have `<` in the source strings (en-US), and some of them are not in use in Nightly (Panic button was migrated to Fluent in bug 1495861). Why is en-US not broken?