Apparently the Mozilla folk are happy for anyone to use it - so let's hope we see Opera and Safari pick up on the Mozilla move. After all, there's one thing that's good for the web, and that's consistent semiotics.
I’m excited to announce that we’re adopting the icon used in Firefox. John and Chris were very enthusiastic about allowing us (and anyone in the community) to use their icon. This isn’t the first time that we’ve worked with the Mozilla team to exchange ideas and encourage consistency between browsers, and we’re sure it won’t be the last.
<rant text ="And it's not that annoying and incorrect XML icon that certain people want everyone to use. RSS - and ATOM - are XML languages. The relationship between XML and the web is much bigger than just content syndication, and it shouldn't be trivialised in a misleading orange blob." />