Up until last year you could purchase plush Red Panda (Firefox) toys via the Mozilla Store. But the folks at Mozilla Links have found a couple online merchants that still sell the plush Red Pandas. There are three different size/styles to choose from and prices range from $8-$20. See Mozilla Links for more info.
Comments
The Firefox Extension Guru's Blog 
I am hesitant to respond here because I am a stuffed duck and pandas, even stuffed pandas, might eat ducks. However, I am willing to forget old quarrels and chat. Truce, my panda friend?
Paula