What are the suitable image sizes for Facebook cover and profile ? What dimensions do you use ? Does it work well on responsive screen ?
I don't use Facebook so no idea on it. I think Facebook itself recommends a image size to make the image look better right?
For profile picture, I use 320 x 320 px. But even 168 px will do. Some people use 720 x 720px for high resolution screens. Make sure that it does not get cropped.
Minimum for cover photo is 400 x 315 px. For better results, use 850 x 315 px