STR: 1. Pin a site and close the window 2. Open a new window and navigate to the pinned site 3. Check the URL bar Expected result: 1. The URL bar should be collapsed, and unable to expand via scrolling down page Actual result: 1. The URL bar does not collapse, and can to collapse/expand via scrolling up/down page Build info: [aries] Build ID 20150907110522 Gaia Revision 891798f1e345bc2b69e71de42bd524a90b1745c4 Gaia Date 2015-09-07 02:49:56 Gecko Revision https://hg.mozilla.org/mozilla-central/rev/5fe9ed3edd6811a662d40d05e37b0d66e9520d82 Gecko Version 43.0a1 Device Name aries Firmware(Release) 4.4.2 Firmware(Incremental) eng.worker.20150907.102632 Firmware Date Mon Sep 7 10:26:39 UTC 2015 Bootloader s1 [flame] Build ID 20150907150218 Gaia Revision 891798f1e345bc2b69e71de42bd524a90b1745c4 Gaia Date 2015-09-07 02:49:56 Gecko Revision https://hg.mozilla.org/mozilla-central/rev/5fe9ed3edd6811a662d40d05e37b0d66e9520d82 Gecko Version 43.0a1 Device Name flame Firmware(Release) 4.4.2 Firmware(Incremental) eng.cltbld.20150907.182946 Firmware Date Mon Sep 7 18:29:58 EDT 2015 Bootloader L1TC000118D0