Mozilla Firefox — свободный браузер на движке Gecko

Firefox before 1.0.1 and Mozilla Suite before 1.7.6 use a predictable filename for the plugin temporary directory, which allows local users to delete arbitrary files of other users via a symlink attack on the plugtmp directory.

Heap-based buffer overflow in the UTF8ToNewUnicode function for Firefox before 1.0.1 and Mozilla before 1.7.6 might allow remote attackers to cause a denial of service (crash) or execute arbitrary code via invalid sequences in a UTF8 encoded string that result in a zero length value.

The Form Fill feature in Firefox before 1.0.1 allows remote attackers to steal potentially sensitive information via an input control that monitors the values that are generated by the autocomplete capability.

Firefox before 1.0.1 and Mozilla before 1.7.6, when displaying the HTTP Authentication dialog, do not change the focus to the tab that generated the prompt, which could facilitate spoofing and phishing attacks.

The installation confirmation dialog in Firefox before 1.0.1, Thunderbird before 1.0.1, and Mozilla before 1.7.6 allows remote attackers to use InstallTrigger to spoof the hostname of the host performing the installation via a long "user:pass" sequence in the URL, which appears before the real hostname.

Firefox before 1.0.1 allows remote attackers to spoof the (1) security and (2) download modal dialog boxes, which could be used to trick users into executing script or downloading and executing a file, aka "Firespoofing."

The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.

The International Domain Name (IDN) support in Firefox 1.0, Camino .8. ...

The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.

Firefox 1.0 does not invoke the Javascript Security Manager when a user drags a javascript: or data: URL to a tab, which allows remote attackers to bypass the security model, aka "firetabbing."