its out with three critical security holes patched and a handful of other bugs fixed.
get yours updated.
for some of you who could not wait for ubuntu 9.10 to get their firefox upgraded to 3.5.x and followed jun auza’s firefox upgrade path (the second option), here’s the command i used to upgrade to 3.5.3:
wget -O - http://releases.mozilla.org/pub/mozilla.org/firefox/releases/3.5.3/linux-i686/en-US/firefox-3.5.3.tar.bz2 | tar xj -C ~
like i said before, this worked for me. it may not work for you. the risk is yours.