There is a firefox plugin named greasemonkey that helps you to bypass timelimit and allow you to download multiple files using free rapidshare account. You may call it as rapidshare hacking for firefox users. Rapid share and firefox users can download that plugin and enjoy unlimited downloads without any time limits. Seems like hacking rapid share is hot topic these days, everyday programmers are finding loopholes in rapidshare programming so that rapidhsare free account users can enjoy premium membership benefits for free.
However this greasemonkey plugin is available for firefox users only, internet explorer users may switch to firefox to enjoy this free rapidshare hack.