Here is a quick warning for Firefox users, it comes in the shape of a realistic looking email, but the general idea is to get the user to click on the link and get some nice malware installed on their computer. Beware Firefox update emails and remember that the Firefox browser updates automatically!
This is what the notice says in full;
Important notice – A Firefox software update is a quick download of small amounts of new code to your existing Firefox browser. These small patches can contain security fixes or other little changes to the browser to ensure that you are using the best version of Firefox available. Firefox is constantly evolving as our community finds ways to make it better, and as we adjust to the latest security threats. Keeping your Firefox up-to-date is the best way to make sure that you are using the smartest, fastest and most importantly safest version of Firefox available. A Firefox update will not make any changes to your bookmarks, saved passwords or other settings. However, there is a possibility that some of your Add-ons won’t be immediately compatible with new updates. For security reasons please update your Firefox version now [LINK]
Source [The Register]