Created attachment 8931857 [details] Screen Shot 2017-11-25 at 15.52.41.png User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:57.0) Gecko/20100101 Firefox/57.0 Build ID: 20171112125346 Steps to reproduce: Play any youtube video in full screen Actual results: Hides the dock but leaves the area blank. Expected results: Whole screen should be taken up by the video in fullscreen.
Summary: Firefox Quantum: videos don't fully go fullscreen. → Firefox Quantum on Mac: videos don't go fully fullscreen.
Component: Untriaged → Widget: Cocoa
OS: Unspecified → Mac OS X
Product: Firefox → Core
This is fixed in macOS 10.13.1.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 months ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1390125
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