附加元件
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This extension adds a toolbar button that allows the easy toggling of viewing all message headers. Now localized in: cs-CZ, da-DK, de-DE, el-GR, en-US, es-AR, es-ES, fi-FI, fr-FR, he-IL, it-IT, ja-JP, ko-KR, nb-NO, nl-NL, pl-PL, pt-BR, ru-RU, and sv-SE.
