Neither the [`` example on MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/video ) nor the [HTML5 WebM Video Test here](https://www.tekeye.uk/ht… (читать ещё)
Neither the [`
So how do I get them running? A significant portion of the internet runs on WebM and the fact that Mozilla's own dev docs can't show examples is a good indication of a problem.
my firefox/mozilla updated without my knowledge. I turned the computer off and on and when it came back on it said it updated. My bookmark bar is missing along with all… (читать ещё)
my firefox/mozilla updated without my knowledge. I turned the computer off and on and when it came back on it said it updated. My bookmark bar is missing along with all the drop down bookmarks I had..there was an arrow pointing down. I don't remember all of the bookmarks there were and there were lots. Some were for doctor portals. How can I get my bookmarks back I tried some online stuff but nothing works. Donna
