Firefox only (Windows/Mac/Linux): Check4Change is a simple Firefox extension that allows you to check web-pages for changes at a user determined interval. Once installed you can select text from a page, right click and select a time interval for refresh. When a change occurs the following notifications occur based on your preferences: the tab icon becomes a little dancing C4C emblem, a pop-up notification occurs, and/or a sound plays. Check4Change only works on open tabs. If you need to monitor a page for change over the long term, it isn't effective to keep the tabs open for every page you want to monitor. Check out Firefox extension Update Scanner to keep tabs on site changes over time. Check4Change is a free Firefox extension and works wherever Firefox does. Thanks Joshua!
Check4Change Monitors Pages For Activity
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