Bug 475318 implements a new scrubber thumb containing a timestamp. The XUL box for the larger thumb overlaps the scrubber bar, such that clicking on the bar immediately below the thumb does nothing (instead of jumping playback to that position). See also bug 486882 and bug 475318 comment 8. Might be able to fix this by using some margin-bottom to effectively push the scrubber's box above the bar. If not that, it might be possible to fudge it by adding an onclick handler to the thumb (which either bounces the event to the scrubber bar, or handles the position change itself).

Not actively working at this at the moment.

pointer-events:none;?

This issue can be reproduced on latest build of Flame2.2 and Flame3.0, Nexus5_2.2 and Nexus5_3.0. Rate:10/10 STR: 1.Launch gallery. 2.Play a video. 3.Clicking on video scrubber bar directly. Device: Flame2.2[Affected] Build ID 20150716162504 Gaia Revision e1e6317f17a840b19af9dbb25f5a771d8d9fa161 Gaia Date 2015-07-15 21:05:11 Gecko Revision https://hg.mozilla.org/releases/mozilla-b2g37_v2_2/rev/418b2388edb0 Gecko Version 37.0 Device Name flame Firmware(Release) 4.4.2 Firmware(Incremental) eng.cltbld.20150716.195810 Firmware Date Thu Jul 16 19:58:22 EDT 2015 Bootloader L1TC000118D0 Device:Flame master[Affected] Build ID 20150716160203 Gaia Revision 77bc0d940bde2a5d2d4dfadfcccc6d8d77456d36 Gaia Date 2015-07-16 16:25:03 Gecko Revision https://hg.mozilla.org/mozilla-central/rev/8d262d1d0ae5 Gecko Version 42.0a1 Device Name flame Firmware(Release) 4.4.2 Firmware(Incremental) eng.cltbld.20150716.193202 Firmware Date Thu Jul 16 19:32:13 EDT 2015 Bootloader L1TC000118D0 Device: Nexus5_2.2[Affected] Build ID 20150716162504 Gaia Revision e1e6317f17a840b19af9dbb25f5a771d8d9fa161 Gaia Date 2015-07-15 21:05:11 Gecko Revision https://hg.mozilla.org/releases/mozilla-b2g37_v2_2/rev/418b2388edb0 Gecko Version 37.0 Device Name hammerhead Firmware(Release) 5.1 Firmware(Incremental) eng.cltbld.20150716.195402 Firmware Date Thu Jul 16 19:54:20 EDT 2015 Bootloader HHZ12f Device: Nexus5 3.0[Affected] Build ID 20150716160203 Gaia Revision 77bc0d940bde2a5d2d4dfadfcccc6d8d77456d36 Gaia Date 2015-07-16 16:25:03 Gecko Revision https://hg.mozilla.org/mozilla-central/rev/8d262d1d0ae5 Gecko Version 42.0a1 Device Name hammerhead Firmware(Release) 5.1 Firmware(Incremental) eng.cltbld.20150716.193004 Firmware Date Thu Jul 16 19:30:22 EDT 2015 Bootloader HHZ12f

marking it with polish keyword, since the workaround is straighforward, (i.e., drag) while it is intuitive to simply tap the area to FF/REW.

This WFM on Windows 10 Nightly 2016-05-04.