Got this from another forum:

http://www.mozilla.org/security/history-title.html
http://www.thenexusvoid.com/thread.asp?forum=technews&thread=707

Thanks man. Haven't run into that yet personally but thanks for the heads up.

Thanks for the info.

so for those that are link clickers what is the exploit?

Quote:

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Web pages with extremely long titles (the posted proof of concept used 2.5 million characters) can cause Mozilla Firefox and the Mozilla Suite to appear to "hang" on startup when reading the browsing history data. The browser will eventually continue normally although this can take up to several minutes on a slower computer. The unresponsive starts will continue until the item with the long title is removed from the history file or eventually expires.

We have investigated this issue and can find no basis for claims that variants of this denial-of-service attack can cause an exploitable crash, and no evidence for this claim has been offered. There does not appear to be any risk to users or their computers beyond the temporary unresponsiveness at startup.

Should the user encounter this problem the slow starts can be fixed by deleting the item from history.

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