Now that Firefox 3 has been released, I really wanted a couple of icons that I could easily identify as either v2 or v3 for my Windows Quick Launch bar. Since I couldn't find any icons out there, I threw together 2 icons which just add the version as an overlay to the original Firefox icon.
I'm not a designer or artist, so I'm sure I could have selected better colors of green, but the contrast works well for what I needed. I can now clearly see which version of Firefox I'm getting ready to load up.
Hopefully someone else will find the icons useful.