Facebook disabled account

Created a facebook account back in June with gmail account and even phone verified it, didn't post on it. I created in on a Firefox browser and always logged on to it in a firefox broswer. Log on to it a few times. This week i log on to it and it said my accout was disabled. Facebooks reasons for disablling on below.

• Your account must list your authentic name.
• Personal accounts must represent individual people only. It's a violation of our policies to use a personal profile to represent anything other than yourself (ex: celebrities, pets, ideas, objects, etc.).
• Impersonating anyone or anything is not allowed.
• Maintaining multiple accounts is a violation of our policies.
• Accounts created for the purpose of spamming or harassing others are strictly prohibited.

I do have another facebook account and only use Chrome to log in. I logged out of it 20 mintues, before logging in to the other now disable FB acount.

Why do you think they disabled it? (guess mulitple accounts).

How would I prevent this in the future?

Buy fb acc in future

That will not solved the problem. Facebook will disabled it, too. i try it. I buy a facebook account in the future. I use the account over 3 years old. The last one year i only login into this account. sometimes some posts likes, that´s it. For a few months facebook disabled this account