User-Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0 I press volume up and volume down to record log and screenshot. And when I want to submit it to bugzilla, it show me the message only. After I restart, I found the screenshot is in my gallery and I can open it. So I only submit this screenshot for this bug.
Can you please retry, and also share the build details. Thanks
After I restart the phone, this problem is never happened. And because my Z3C is broken, I got a newer one, now.
Thanks for the update