Open Your Google Chrome and open extensions page (chrome://extensions/)
drop Extension file "Multiple Facebook Requests.crx" to chrome Extension page
click button "Add extension"
Click on the extension icon and click on < Requests Page on facebook mobile >
Click on "Confirm all" button if you want to accept all Friend Requests, or Click on "Delete All" button if you want to delete all Friend Requests
That's it, now wait :)