User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0 Waterfox/46.0 Build ID: 20160225004014 Steps to reproduce: Have 2 windows open, one with anything, another with a HTML5 video. Click inside the window without the video in it Press the video open in the other window Actual results: The video goes fullscreen, as if you double-clicked it. Expected results: The video should pause instead of going fullscreen, as you only clicked on the video once.
I can't reproduce it or your STR don't have enough details. Could you test: 1) in safe mode: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode 2) with a fresh profile: https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
Restarting with addons disabled seemed to fix it, must be related to one of them.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → INVALID
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