How to avoid hacker attacks on Mozilla Firefox
ZD Net provides you with a step-by-step pictorial tutorial on the procedure for securing your Firefox browser from hacker attacks. These tips had been recommended by CERT/CC and published by Carnegie Mellon University.
It is a must read.
Important Note:
The images from these CERT/CC recommendations came from an older version of Firefox. On newer versions, the display screens will vary slightly but the advice/recommendations still apply.