Security issues were identified and fixed in firefox:

layout/generic/nsObjectFrame.cpp in Mozilla Firefox 3.6.7 does not
properly free memory in the parameter array of a plugin instance,
which allows remote attackers to cause a denial of service (memory
corruption) or possibly execute arbitrary code via a crafted
HTML document, related to the DATA and SRC attributes of an OBJECT
element. NOTE: this vulnerability exists because of an incorrect fix
for CVE-2010-1214 (CVE-2010-2755).

Packages for 2008.0 and 2009.0 are provided as of the Extended
Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=490

Additionally, some packages which require so, have been rebuilt and
are being provided as updates. The python packages contained a small
dependency problem on 2008.0/2009.0/MES5 that is addressed as well
with this advisory.