Tuesday, November 3, 2015

Turn Off Firefox HTML5 Video Fullscreen Fade Black Delay Effect

Firefox 42 adds a new fade to black delay effect when transitioning to and from fullscreen html5 videos, you'll notice it very quickly on YouTube. It's a security feature (I guess), but I find it very annoying as it adds unnecessary delay to watching videos so here is how to turn it off.

Go to about:config (in url bar)

Set both of these entries to 0 0 from 200 200

full-screen-api.transition-duration.enter 0 0
full-screen-api.transition-duration.leave 0 0

In the future (Firefox 43+) you'll be able to use full-screen-api.warning.timeout set to"0".

Hope that works for you, found via reddit.