I do not know if it is related, but now, for me going full screen results in a black screen whether I am on youtube or not, and I can get out of it by pressing the "Esc" key.
-- Nicolas DEGAND -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org