Firefox only (Windows/Mac/Linux): Check4Change is a simple Firefox extension that monitors web-pages for changes at a user-determined interval. Once installed, you can select and right-click text on any page, then simply choose 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.
- 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, works wherever Firefox does.