An update has been released from Mozilla, Opera and Apple (Safari).

There is no DLL on my computer.
Perhaps because there is no Windows on my computer ^^

Firefox 3.6.9:
http://www.mozilla.org/security/announce/2010/mfsa2010-52.html

Opera 10.62:
http://www.opera.com/docs/changelogs/windows/1062/

Safari 5.0.2:
http://support.apple.com/kb/HT4333

Or if you are using older Firefox series the non-affected version is FF3.5.2.

you know that there are several security fixes in the releases after 3.5.2?
so 3.5.2 is affected in other issues.

What about Chrome?

A good question, according to this list Chrome is affected:
http://www.corelan.be:8800/index.php/2010/08/25/dll-hijacking-kb-2269637-the-unofficial-list/

Maybe not fixed yet?

Thanks hebbet. It was my typo made with mobile browser :)

The non-affected Firefox 3.5.x version is FF3.5.12 (not 3.5.2).

It was released at the same time with FF3.6.9.