If you read blogs on a daily basis you know that it’s very common for articles to have several links in the article text (both internal and external). Since in most cases internal and external links are colored in a similar way it’s hard to distinguish between them.
External Link & Phishing Highlighter is a simple Greasemonkey script for Firefox users that offers a solution to that. It basically highlights all external links on a webpage with a helpful icon so you know when you’re about to leave a website and go to another source. The icons added to external links are favicons from those sites.
It is really easy to set up and use, if you already have Greasemonkey installed then simply go the script page and click on the Install button to get it working on your browser.
Get External Link & Phishing Highlighter @ www.userscripts.org/scripts/show/28901 [No Longer Available]