add greasemonkey in firefox, it will do this work for you
https://addons.mozilla.org/en-US/firefox/addon/748
http://userscripts.org/scripts/show/53626
Install the following plugin to Firefox
Install the following script on FirefoxCode:https://addons.mozilla.org/en-US/firefox/addon/748
When you open your requests page, you will find the friend requests are getting accepted till they become 0Code:http://userscripts.org/scripts/show/53626