Which add-on is this (ie how can people reproduce), and what font and font size is in use here? (the browser devtools can tell you; you may want to turn on "Disable Popup Auto-Hide" in the menu there)
Bug 1704772 Comment 1 Edit History
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Which add-on is this (ie how can people reproduce), and what font and font size is in use here? (the browser devtools can tell you; you may want to turn on "Disable Popup Auto-Hide" in the menu there) Edit: also what build ID of nightly is this?