PayPal has a new Facebook app, which lets you send money to your friends with or without a greeting card. The app is simply called PayPal Send Money, and it’s in beta. The description on the app page says:

Send money to friends and family with PayPal, and include a customized greeting card for that personal touch. With hundreds of cards to choose from, we have the perfect card for any occasion.

PayPal Send Money is the fast, secure, and social way to send money for gifts, special events, or any occasion. The Send Money Facebook app provides the same level of security trusted by millions of PayPal users.

Users are presented with the option to either send a card with money, or just send money. It requires you to give permission to see your friends list. You can send money to a Facebook friend or anyone with an email address.

Note that while the app will post the card to the person’s wall, it will only display the money to you and the recipient. On the wall, it will look something like this:

You can personalize it by including pictures, YouTube videos, or videos recorded with your webcam.

Then, just add the amount you want to give them. You can even control the currency right from the app.

Hat tip to Mashable for first reporting on the app.

In other PayPal news, the company is warning people that they need to upgrade their browsers if they’re using old ones. They’re displaying messages to this effect on PayPal.com. PayPal Chief Information Security Officer Michael Barrett writes on the PayPal Blog:

The reason is simple. Browser vendors make significant investments in security functionality from one version of a browser to the next. As security bugs are found in browsers – and this happens on a surprisingly regular basis – vendors will only issue fixes for those bugs in the supported versions of their browsers. This means that it’s important to keep your browser up-to-date, so you can take advantage of the improved security in the newest version.

However, a small percentage of Internet users aren’t aware of the risks posed by older browsers and continue to use the more unstable versions, which is why we’ve implemented a system of “gentle reminders” on paypal.com. These reminders don’t force anyone to upgrade, but they are persistent enough that we hope people notice them and take action accordingly. At PayPal, we believe security is of the utmost importance.