On 10/27/2016 2:16 PM, Ant wrote:
Hi.

I'm getting used to HTML5 videos since I can use SM's about:config's
autoplay off value instead of having to use Flash to activate to show on
my new 64-bit W7 EE SP1 installation. However, I am having problems with
YouTube's HTML5 videos to go fullscreen. YouTube's greyed out fullscreen
icon option's link goes to
https://support.google.com/youtube/answer/6276924 ... It says "On
Firefox, try the following steps: In the location bar (where you enter
URLs), type "about:permissions" and hit enter." However, SeaMonkey v2.40
doesn't have it.

How can I get to there with "You'll see a Fullscreen setting. Select
'Always ask' or 'Allow' to allow YouTube to go fullscreen on these
sites." instructions? I tried SM's Data Manager and looking in
youtube.com domain, but did not see any full screen.

Thank you in advance. :)

Google needs to update their support. Fx dropped about:permissions in Fx 45 (which is one reason Pale Moon (which still has it) is my default browser). About:data is the closest thing in SeaMonkey and there is no setting there for allowing full screen on certain sites.

I'm happy that SeaMonkey finally goes full screen at youtube when using Flash. It doesn't with the HTML5 player and I don't think it can be fixed. That video in your screenshot plays fine full screen using Flash. I didn't turn off Flash to see what would happen if it played in HTML5 but I know other videos I have tried at youtube will not play full screen using the HTML5 player on SeaMonkey. (It doesn't bother me as I prefer Flash).

I haven't been to youtube recently. Four ads tried to play and none could (either the domains are blocked in HostsMan or the Proxomitron ate them). I didn't know youtube was forcing a lot of ads now (or trying to force as I still got the video to play and didn't see a single ad).
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