I am failing to reproduce this bug on any of 78.10.0 (32-bit), 89.0b1 (64-Bit), 90.0a1 (2021-04-28) (64-bit). (In reply to Wayne Mery (:wsmwk) from comment #4) > Thomas, does comment 1 + 2 provide blame? Nothing which would explain this bug. All of the blames are very old or just reformatting. https://searchfox.org/comm-central/rev/ed09a085f3b74782be51dd96f5e7a4c61a1f7a2b/mail/base/content/msgHdrView.js#1636 https://searchfox.org/comm-central/rev/ed09a085f3b74782be51dd96f5e7a4c61a1f7a2b/mail/base/content/msgHdrView.js#1813 https://searchfox.org/comm-central/rev/ed09a085f3b74782be51dd96f5e7a4c61a1f7a2b/mail/base/content/msgHdrView.js#1631
Bug 1693167 Comment 6 Edit History
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I am failing to reproduce this bug on any of 78.10.0 (32-bit), 89.0b1 (64-Bit), 90.0a1 (2021-04-28) (64-bit). (In reply to Wayne Mery (:wsmwk) from comment #4) > Thomas, does comment 1 + 2 provide blame? Nothing which would explain this bug. All of the blames are very old or just reformatting. https://searchfox.org/comm-central/rev/ed09a085f3b74782be51dd96f5e7a4c61a1f7a2b/mail/base/content/msgHdrView.js#1636 https://searchfox.org/comm-central/rev/ed09a085f3b74782be51dd96f5e7a4c61a1f7a2b/mail/base/content/msgHdrView.js#1813 https://searchfox.org/comm-central/rev/ed09a085f3b74782be51dd96f5e7a4c61a1f7a2b/mail/base/content/msgHdrView.js#1631 Note that the actual lines where the error occurs must be a few lines off. The common denominator is that they are all passing `document.popupNode` into a function, and if that's undefined, obviously some of the subsequent lines e.g. having `popupNode.closest` will fail. Why or how `document.popupNode` would be undefined for right-click is a mystery to me, so I think this involves other factors like addons, assistive technologies, or missing steps.