Fwiw, TB 78 is probably wontfix, but not unaffected as it does have the original typo (inconsequential): https://hg.mozilla.org/releases/comm-release/file/9921e1929e744e2f5e64163f036c215f2960fc1f/mail/components/compose/content/MsgComposeCommands.js#l4137 `function udpateAddressingInputAriaLabel(row) {`
Bug 1711270 Comment 6 Edit History
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Fwiw, TB 78 is probably wontfix, but not unaffected as it does have the original typo (inconsequential): https://hg.mozilla.org/releases/comm-release/file/9921e1929e744e2f5e64163f036c215f2960fc1f/mail/components/compose/content/MsgComposeCommands.js#l4137 `function udpateAddressingInputAriaLabel(row) {` (copied over mkmelin's flag change from my identical Bug 1710825 Comment 10 which was in the wrong place)