Mozilla Firefox — свободный браузер на движке Gecko

Firefox 1.0.6 and Mozilla 1.7.10 allows attackers to execute arbitrary commands via shell metacharacters in a URL that is provided to the browser on the command line, which is sent unfiltered to bash.

Integer overflow in the JavaScript engine in Firefox before 1.0.7 and Mozilla Suite before 1.7.12 might allow remote attackers to execute arbitrary code.

Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to spawn windows without user interface components such as the address and status bar, which could be used to conduct spoofing or phishing attacks.

Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to spoof DOM objects via an XBL control that implements an internal XPCOM interface.

Firefox before 1.0.7 and Mozilla before Suite 1.7.12 allows remote attackers to execute Javascript with chrome privileges via an about: page such as about:mozilla.

Heap-based buffer overflow in Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to execute arbitrary code via an XBM image file that ends in a large number of spaces instead of the expected end tag.

Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via Unicode sequences with "zero-width non-joiner" characters.

Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to modify HTTP headers of XML HTTP requests via XMLHttpRequest, and possibly use the client to exploit vulnerabilities in servers or proxies, including HTTP request smuggling and HTTP request splitting.

Firefox before 1.0.4 and Mozilla Suite before 1.7.8 do not properly limit privileges of Javascript eval and Script objects in the calling context, which allows remote attackers to conduct unauthorized activities via "non-DOM property overrides," a variant of CVE-2005-1160.

The install function in Firefox 1.0.3 allows remote web sites on the browser's whitelist, such as update.mozilla.org or addon.mozilla.org, to execute arbitrary Javascript with chrome privileges, leading to arbitrary code execution on the system when combined with vulnerabilities such as CVE-2005-1476, as demonstrated using a javascript: URL as the package icon and a cross-site scripting (XSS) attack on a vulnerable whitelist site.