https://bugzilla.mozilla.org/show_bug.cgi?id=334341

It is possible by a malicious web site to open local content in the browser by tricking a user into right-clicking and choosing "View Image" on a broken image, which is referencing a local resource (e.g. via the file: URI handler).

This may be exploited in combination with other vulnerabilities.

The weakness has been confirmed in version 1.5.0.2. Other versions may also be affected.

User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.2)
Gecko/20060308 Firefox/1.5.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.2)
Gecko/20060308 Firefox/1.5.0.2

A bug has been discovered by myself(TeamOverload) in Firefox
1.5.0.2(other versions are probably affected too). Through a
specially crafted webpage you can have any file be disguised as an
image. If you then right click-view image, the file will attempt to
download or just run if it is on the bypass list. Some extensions
such as .wma are defaulted like that and a malformed wma can be loaded
just by going to view image. Other websites can be loaded this way as
well.

Reproducible: Always

Steps to Reproduce:
1.Download attached archive that causes problem
2.Launch web page, and right click and choose show image on both
3.First image should open WindowsMediaPlayer and the second should go to a
different web page.

Actual Results: 
Both WMP and the alternate web page opened.