Firefox:18.104.22.168:Overview - MozillaWiki
This past week a new exploit was discovered for Firefox 22.214.171.124. Secunia, a popular software security firm, labeled the exploit as not critical. As worst, the exploit could be used to execute a denial of service attack. Mozilla is not taking this lightly and plans to release a patch for Firefox soon. Please refer to the above article for more details on the exploit.