One of the pictures above is a photograph taken by the Hubble space telescope on December 17, 2002. The other is the one we can not be more familiar. Can you believe that?
You can find more photos of the same star, V838 Monocerotis, in Wikipedia. You may notice that the photos in Wikipedia are a little bit different from the one showed here, which has been rotated relative to the original one by Humble and some of the gas cloud may have been edited out around the “tail” of the fox.
Anyway, it’s there, Uh? Now Firefox has been popular in the deep space, so any reason not to switch to the one even God also uses?! 
I used to enjoy firefox but it makes me so disappointed for losing my bookmarks twice.
Nope. I don’t think so. Firefox always backs up your bookmarks. You can always recover it. Read more here to find how to recover them in FF2 and FF3. A better choice is to use the Foxmarks extension/add-on which always keeps a copy of your bookmarks on a remote server and automatically synchronizes it with the one in your local machine.