Disable HTML5 fullscreen warning
I can not disable the fullscreen warning in Firefox 42, it was possible to disable it in previous versions by disabling "full-screen-api.approval-required" in about:config.
Windows 10 x64
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At the very least allow us to add exceptions for websites, I don't need to be bloody told that I've entered Fullscreen Mode on Youtube when explicitly telling it I want to watch a fucking video in full screen! It's a redundant warning in that situation!
There wasn't a way to add site specific exceptions before, which is likely why you saw a lot of people disabling this safety measure completely, and there still is no way to have site specific disabling of the warning.
See:
- bug 1160017 - Get rid of permission for DOM fullscreen
Please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html
Note comment 26 in that bug report, it reflects my feelings on the change. Please add site-specific exceptions that prevent the fullscreen warning from ever appearing when something on a specified website tries to enter a fullscreen mode.
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Migrated my feedback to there, thanks.