>>> My Info: Win7_64, Nightly 52, 32bit, ID 20161028030204 (2016-10-28) STR_1: 1. Open attachment 8666006 [details] (from bug 1208489) 2. Click "Options" button in notification below urlbar ["Blocked popup" menu will appear] 3. Click "Options" button in notification below urlbar AR: After Step 3 "Blocked popup" menu blinks (disappears and reappears) ER: After Step 3 "Blocked popup" menu should hide. Note: If you're reading this, please note that according to bug 1251569 comment 8, bug 1251569 comment 11, Mozilla developers (Marco Bonardo spoke for the whole team) have chosen a way of endless workarounds: they use the same hack for each occurrence of this bug (and want any extension to also implement that hack) instead of a real fix; this direction of "development" affects the outcome. You can see this in bug 1148716, bug 1251569. This is regression from bug 1089005. Regression range: > https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=bb8d6034f5f2&tochange=f5947d58ab02@ Neil Deakin: It seems that this is a regresion caused by your change. Please have a look.
Component: Untriaged → XP Toolkit/Widgets: XUL
Product: Firefox → Core
Moving to Core:XUL per https://bugzilla.mozilla.org/show_bug.cgi?id=1455336
Component: XP Toolkit/Widgets: XUL → XUL
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