Problem [youtube][/youtube] BBCode tags not working for my browser??

The web browser I use is called Waterfox aka the unofficial 64-bit Firefox.



For a while now, I have noticed that when someone makes a post with the [youtube][/youtube] tags, the youtube video doesn't appear; nothing appears. Posts which just have the youtube video appear blank on Waterfox.



I've checked with different browsers and different tags. The [youtube][/youtube] work fine on all of the other browsers except Waterfox. The [yt][/yt] tags work fine across all browsers including Waterfox.



I was under the impression that Waterfox wasn't significantly different to Firefox but I can't confirm on my laptop whether the [youtube][/youtube] tags work on the normal version of Firefox. I'm guessing they do since no one else seems to have reported this problem.



Any ideas? Is it worth fretting about?

Problem [youtube][/youtube] BBCode tags not working for my browser??