Facebook messenger apps or websites?

[Meg]

I need a website or a windows 7 app that can let me use my facebook messenging on my desktop. My school blocked facebook, so I can't download that app. The microsoft store doesn't work, because I need windows 8 to use any of their apps.

i know there used to be websites where you could chat through gmail, yahoo, etc. all at once, you just had to log in. I also had an app last year for my facebook messaging, but my computer had to be re-imaged so it was erased.

I would like something safe and pretty well-known, please.

Thanks!

[pri✍]

Try Nimbuzz, you can chat to gmail, yahoo messenger, friends in Facebook etc.