Device: - Nexus 6 (Android 7.1.1); Steps to reproduce: 1. Open Fennec; 2. Go to the Recommended by Pocket section; 3. Double tap on the 3 dot menu for any of the stories. Expected result: One context menu is opened. Actual result: Two context menus are opened for that item. Notes: The same issue can also be reproduced for any highlights item. This is a concern because for single use items in the menu (eg. bookmarking), the second one is not updated giving the user the possibility to add the same item twice as a bookmark, thus crashing Fennec. Here is a crash report example: https://goo.gl/TZBXKi

This is because the click listener gets called twice. The ButterKnife library solves this generically with their DebouncingOnClickListener: https://github.com/JakeWharton/butterknife/blob/7f8ee37a05f8e0ee27e45673a38caeee4a0bb418/butterknife/src/main/java/butterknife/internal/DebouncingOnClickListener.java

But there is a bug in it for some specific cases: https://github.com/JakeWharton/butterknife/issues/766#issuecomment-296715370

Hi Joe, Wesly Please help prioritize this. jcheng@mozilla.com, wehuang@mozilla.com,

I assume we should leave this to AS team?

Wesly, I'm only on AS for critical crashes and this doesn't seem critical to me – am I missing something that would show this is critical? Otherwise, I think the fennec team would have to handle it if you want it fixed.

@Michael: my bad. I was not aware of the AS ownership transitioning, and now have refreshed my head : ) @Bogdan: in my test it's not easily repro and I only made it few times when I double-tap the 3-dot menu very quickly. Is this the same as you see, or you actually met this simply with a normal click speed? Another thing interesting though is what's users' expected action on the 3-dot menu, maybe I'm not a normal user anymore but I never think of tapping it twice :), so maybe it's not a common case user will see?

Hello, This is not a great concert, this case could apply to slower devices where the menu takes more time to appear and the user manages to tap the menu twice if he is inpatient or rushing to do something. It is harder to reproduce this on higher end devices since the device is more responsive and the menu appears almost instantly. After managing to open the menu twice a crash can be simply reproduced by using the same single use option in both menus (eg. bookmarking, pinning).

Thanks Bodgan, got it! I did meet the crash as you said when repro the issue successfully. Set P3 given the steps to repro it.

Re-triaging per https://bugzilla.mozilla.org/show_bug.cgi?id=1473195 Needinfo :susheel if you think this bug should be re-triaged.

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