Change Facebook Cover Photo from iPhone?

I used to know how to do this, by pressing that little icon and so on, but recently it has all changed and I don't know if I can still change my cover photo from my iPhone or I need a pc. If its still possible can you tell me how and if its not possible can you tell me that too?

APPS THAT YOU CAN CHAT WITH GROUPS OF STRANGERS?

Any iPhone apps that are like chat lobby? Chat lobby isn't working anymore is there anything else? I don't want Facebook or omegle, I wanna chat with groups of people in a room that allows you to show pics… ANYONE?

How much is it to fix an iphone 5 screen?

This stupid girl was swinging her band insturment around and knocked it out of my hand. Yea it makes me mad. Everything i'm seeing is like $70-100. Heck i can get a mew phone for $200. Can you like buy the glass and do it urself?

Can i keep my current contract if a purchase a iphone 4s?

I currently have a contract with T-mobile
300mins
300texts
unlimited internet
anyway i'm thinking of purchasing an iphone 4 or 4s so would i be able to cut my simcard into a micro sim and put it straight into a iphone and it will work?

Keep losing connection to the internet; computer, ipad, iphone?

It works for a couple of minutes then it has the '!' icon above the internet connection icon at the bottom. It says the network can't find the problem. It also says that the internet can't find the webpage ect. I have reset the modem but the problem is still happening with all the devises connected to the internet what is wrong and how do i fix it?

Best Music equalizer app for iphone?

I've bought 2 eq apps for my iphone 4 on itunes, but both are somehow laggy or takes a while to get the song into the equalizer menu: S Any suggestions?