How do you blur a picture on FB?
Open your image and Select the area you want to blur out. Filter>Pixelate>Mosaic. Finally, Change the Cell size in Popup Box. And save it.
Does Facebook blur photos?
The editing offered by Facebook is "Scale to Fit," which stretches or compresses the photo to upload. This is another reason for the blurriness of the images. The distorted picture was originally good in quality, but due to the editing by Facebook, now it is distorted.