Reload Every ...

ReloadEvery is a Firefox Extension which lets you .. reload a page! But then, it lets you reload a page - every few secs that you might need.

This is useful if you are tracking Stocks and you want the page to be refreshed say every 10 seconds or even trying to get an account on one of those private bittorrent tracker sites ;-) and you keep getting those User Limit reached errors - just put on Reload Every and you should get a confirmed account if they are pruning that is..