How do i post a picture from my Samsung tab 3 to Facebook ?

Samsung Galaxy Tab A (Wi-Fi, SM-T550) - Taking a ...

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Capturing a screen shot is quick and easy on your Samsung Galaxy Tab A.

Taking a Screenshot - Samsung Galaxy Tab A (Wi-Fi, SM ...

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Taking a Screenshot - Samsung Galaxy Tab A (Wi-Fi, SM-T550). Capturing a screen shot is quick and easy on your Samsung Galaxy Tab A. facebook twitter.

Most people have more important things to concern themselves with than some silly posting on Facebook.
Furthermore there are people asking questions on this site with problems of some significance.

I need to know more...Are speaking of Facebook?
In case this is your question; mist pic on facebook go down on page you have to click on more on the bottom of the page...hope that helps!!!: )

1. Backup your device
2. Reset to factory defaults (How Do Reset My Galaxy Tab 3 Wi Fi Tabs Samsung )
3. install all aplications that you need.
Hope this will solve your problem.

Downloading photos from Facebook is pretty simple really. You should just long-press on the picture after which a menu will appear where you should be able to download it.
Another, bit longer way to save a photo is by taking a screenshot of the photo while it is full screen.

click on photo underneath you will see the options button one of them is download,

Sounds like you have a Virus on your Computer... Sorry

I would reinstall the Facebook app. first.

You just need to install the facebook app and sign in with your same account information that you use on the PC.