Every day billions of users are connected on Facebook, but of that gigantic number on the social network, few users are those who know some curious Facebook tricks that may be useful. In this post we compile those that every user would find useful to know, we hope that they are of general interest and benefit
1. Other ways to enter Facebook
This is basic, but many people are unaware of it. You can enter Facebook through the following addresses:
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- http://feisbuk.es/
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- http://fb.com/
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- https://m.facebook.com (versión móvil)
2. How to see friends connected with chat disabled

Typical, you are connected but you don't feel like chatting, so you deactivate your chat ... but yes, you are curious to know who is online. In that case we will use the Pipe application for Facebook, do you remember it? If you read VidaBytes often, I'm sure you do, well, you simply access the application, click on the 'Friends 'and that way you will know who is logged in on Facebook being you with the chat deactivated.
3. The Facebook chat on all the pages you visit
In contrast to the previous trick, there are users who prefer to chat all the time, if this is your case, then you should know that you can put facebook chat on all pages, through a side marker using the Firefox browser.
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- In the bookmarks toolbar, right click and choose 'New marker'
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- In "Address”Paste the following: http://www.facebook.com/presence/popout.php
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- Check the option "Load this bookmark in the side panel"
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- Finally "Add"

Optionally you can customize the properties as seen in the previous screenshot. Now with one click you can have your chat anywhere, although if you prefer, simply placing the Facebook URL, you will have the complete social network.
4. Open two Facebook in the same browser

Because if you have 2 Facebook accounts, you don't necessarily have to open two browsers, with one enough and plenty. We have already commented on it in a previous article, click on the title and you will see in detail the procedure for Firefox and Google Chrome step by step.
5. Put your profile picture in a chat message
That means you can place your thumbnail photo in a conversation, through a message. I clarify that the trick is valid to send the profile photo of any user.
In conversation, in a message, write double cork and inside the Username. A picture is worth a thousand words:

The final message will look like this:

6. Shorten URL on Facebook to share
To send and share a page, profile, group or whatever, it is not necessary to send the full URL, which we know is long. It is enough that you place fb.me ahead, let's see with an example:
URL not shortened: https://www.facebook.com/vidabytes
Shortened url: fb.me/vidabytes
Easy right?
7. The Self-Addressing Profile Prank
A well-known troll-joke on Facebook is the link that redirects to your profile, it goes something like this:
Report this person, he's a pedophile!
https://www.facebook.com/profile.php?ld=1325666
Whoever opens that link will take you to your profile, the trick is in the part that says profile.php, we already know that it is about our profile, about ? ld = 1325666 it's just a filler to make it look like a different address. Very attentive with this eh 
8. Log in with your cell phone number
On Facebook things are more diverse, because the way we are used to logging in with our email is not the only way, it is good that you know that you can also do it with your mobile number, despite the fact that right there on FB it says so , some ignore it.
Of course, as long as you have previously added your cell phone number, to receive notifications, protect your Facebook account and others.
9. Search for a person by email or cell phone number
This is something that has always been questioned, Facebook does not offer email search privacy. Imagine that you are a user who likes anonymity, so you leave your email on a forum or other site, whoever sees it can easily search for you by putting it in the Facebook search engine and in this way know who you are
The same goes for your mobile number, although this can be protected by editing the privacy of your number as “Friends” or “Only me”. With email there is no way.
10. How to block requests for games and applications
It is very annoying to receive those game notifications in a two by three, you should know that you do not have to ignore them, you should block them in order to avoid invitations once and for all.
La solution appears in an X below each invitation notification, click on it to block it. That way you will no longer receive notifications of the particular invitation or person depending on what you have chosen.
11. How to hide a post from a specific person

Whatever reason you have, you can hide a status / photo / video so that some of your friends don't see it. The option "personalised”Is in each publication, you choose it and you go to the option that says'Do not share this with'and you type the name of the user.
12. How to find people you might know
Suggestions appear everywhere, but there is another more efficient and customizable way to search friends. Go to http://www.facebook.com/find-friends/browser/
This option allows you to search for people based on your personal information: friends, city, school, work, etc. Just check the boxes and Facebook will find them.
13. How to see the invitations you sent for someone to join Facebook
Have you ever sent an invitation to join Facebook? If yes or not, following this address: http://www.facebook.com/invite_history.php
You can manage your imported invitations and contacts (from email) to invite them to join Facebook or, failing that, to know who has already joined.
14. How to know if a friend on Facebook deleted you
Who deleted me on Facebook is a free web service that is responsible for keeping a record of all your contacts and as soon as it detects that there is a change in your friends list, either because you have a new friend or someone deleted you, it sends you an email with the name of person. This way you will know for sure who removed you from facebook.
15. Keyboard shortcuts for Facebook

Other cool idle tricks
They are tricks that are no longer working on Facebook, but as information it is good to comment on them and remember them for general knowledge.
16.Facebook Konami Code:

In November 2009 it made its appearance on Facebook as an easter egg, the famous combination of some video games from our eighties childhood, consisted of typing Up, Up, Down, Down, Left, Right, Left, Right, B, A y Enter. Thus an effect of glowing circles appeared on the screen of the Facebook page for a few seconds
17. Comment 0 with empty effect: Until last month it worked, it consisted of commenting with the number zero, that left your comment blank as if you had not commented on anything.

18. Comment @ [4: 0] for Mark Zuckerberg to appear: Yes, as you read it, you wrote @ [4: 0] in a comment and the avatar of the almighty of Facebook would appear.

Extra trick
Recover a hacked Facebook account
If your account has been hacked (hacked), Facebook offers a specific option to account recovery, the link is: https://www.facebook.com/hacked
You just need to know your old password and follow the steps to strengthen its security. So that there is no confusion, this must be done WITHOUT logging in, as you have to specify which account to recover and not the one with which you are connected.
So far friends and friends our compilation of curious Facebook tricks, if you also know other interesting and useful ones; feel free to share them with us