Mozilla Firefox 2.0.0.1 through 2.0.0.3 does not canonicalize URLs before checking them against the phishing site blacklist, which allows remote attackers to bypass phishing protection via multiple / (slash) characters in the URL.

Mozilla Firefox 2.0.0.2 allows remote attackers to spoof the address bar, favicons, and document source, and perform updates in the context of arbitrary websites, by repeatedly setting document.location in the onunload attribute when linking to another website, a variant of CVE-2007-1092.

Mozilla Firefox before 2.0.0.8 and SeaMonkey before 1.1.5 do not properly implement JavaScript onUnload handlers, which allows remote attackers to run certain JavaScript code and access the location DOM hierarchy in the context of the next web site that is visited by a client.