text: is there a firefox extension that will notify you to when a website has updated? it's easy for websites with an rss feed, but what about for others? i do not know of any that would notify you when a website changes. i think the reason for that is with so many websites that have dynamic data, it would become monotonous when you are notified everytime a date changes, or some subtle part of a website changes.   websites owners and website visitors are more apt to utilize syndication feeds on thier sites, you might have heard of rss, or atom links. these are ways for a website to publish when new pertinent information is published. firefox has built in support for rss/atom feeds with the "live bookmark" feature. there are some options for internet explorer as well.  hope this helps.