Tiny URLS are often used in e-mail, Twitter, and other places to shorten a long URL into a
much more convenient, short version.
They're those little URLS that say http://tinyurl.com/pkp9cl or http://bit.ly/pTe77 or some such
But there's a security risk there. You don't know where that URL is going. It could be a map or
the pictures of your friend's vacation. Or it could be a malicious Web site that hijacks your
computer installs a Trojan and keylogger, and you never even know. You just think the Web
The key is to hover over any URL to make sure it's sending you somewhere you trust. But
Tiny URLS only show the shortened URL when you hover over them.
So you can take one of two security precautions.
Never click on a shortened URL.
Which makes your life sad.
Or use a Firefox plug-in that Sam in Melbourne, Australia, told me about, called bit.ly preview,
which lets you see the whole URL that a tiny URL will redirect you to.
Go to addons.mozilla.org and download the add-on and install it in Firefox.
The first time you run it, you'll need to enter a bit.ly log-in and api key.
Go to bit.ly and sign up for an account if you don't have one.
Then click on the account page.
Copy the API Key and paste it into the field back on the options screen and add in your log-in
name and press the save button.
Then close the add-ons windows
Now when you hover over any bit.ly URL you'll see the full URL and page title.
It's supposed to work with other tiny URL services, but I could only make it work for Bit.ly.
Which still makes it very useful for Twitter.
Another Twitter-specific add-on that works for all links is Power Twitter.
It translates every link in Twitter from a URL to a linked title of the page you're going to. It still
won't let you see the full URL, but you'll have a much better idea by the title than you would
It also does other cool things, like embed videos and pictures so you don't have to link out to
Just remember to pay attention to that *before* you click and you'll be a little safer.
Thanks for watching. I'm Tom Merritt, CNET.com
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