You can use "Toolkit for Twitter by PlugEx" to follow multiple twitter profiles displayed on any of the pages on twitter.
To do so, you must follow simple steps that are given below.
We recommend you to use this tool on Twitter Who To Follow Suggestions Page, however you can use this tool on any page that displays follow buttons.
If you have followed above step, then a frame tool will be added on page that you are currently on.
After above frame tool is added on your page, you must follow these steps to click all “Follow” buttons:
This will start the process of clicking all follow buttons one by one, to stop this process, click on “Close” button.