This update covers packages for the little endian MIPS architecture missing in the original advisory. For reference please find below the original advisory text:
For the stable distribution (sarge) these problems have been fixed in version 1.0.4-2sarge13.
For the unstable distribution (sid) these problems have been fixed in the current iceweasel package 2.0+dfsg-1.
We recommend that you upgrade your mozilla-firefox package.