Tab Watcher is a free Chrome extension developed by WebIT-Service. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory.

With Tab Watcher, users can easily monitor tabs for content changes and receive notifications when changes are detected. This extension allows users to define a page check interval and specify a DOM selector to be monitored. Users also have the option to choose whether the page should check for content changes after a page reload or live without reloading the page, which is especially useful for Ajax content changes.

Tab Watcher is a handy tool for those who need to stay updated on content changes on specific websites. By receiving Chrome notifications whenever a change is detected, users can ensure they are always aware of the latest updates without having to manually check each website.

Overall, Tab Watcher provides a convenient way to monitor and stay notified of content changes on websites, making it a valuable tool for users who require up-to-date information.