Please report any other irregularities here.
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0 Build ID: 20160502172042 Steps to reproduce: On a Windows 7 or 10 64bit machine open Firefox Navigate to www.aol.com Click the mail icon and sign in to account Under Options > Mail Settings in the aol page ensure "Always read mail in a new window" is selected. Open a message once and it is displayed properly in a new window. Close the new window. Open the same message again and it will flash briefly and disappear leaving a blank page. Actual results: The second time you open the same message when "Always read mail in a new window" option is selected in aol preferences the window is blank. Starting Firefox in Safe Mode, Add-Ons Disabled, Hardware Acceleration Disabled, had no effect. Reproducible on 3 computers on 3 different networks and two different AOL accounts. Expected results: The second time a message is opened the message should appear.
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 Build ID: 20160530030222 I can confirm the issue is reproducible also on the latest Nightly. If this is a regression, at least is not a recent one since the issue is reproducible also on Firefox 20.0.1.
Status: UNCONFIRMED → NEW
Component: Untriaged → Layout: View Rendering
Ever confirmed: true
Product: Firefox → Core
Version: 46 Branch → Trunk
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