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Mozilla Firefox 'designMode' Null Pointer Dereference Denial of Service Vulnerability

Mozilla Firefox is prone to a remote denial-of-service vulnerability.

Successful exploits can allow attackers to crash the affected browser, resulting in denial-of-service conditions.

Firefox 3.0.5, 3.0.6, 3.0.7, and 3.0.8 are vulnerable; other versions may also be affected.