AlertCheck

AlertCheck is an impressive Firefox extension that can prove immensely helpful for web developers and general users alike. The tool has been designed to detect the first Javascript alert() from any given webpage, and on receiving a second one, offers an onscreen checkbox to the user. This checkbox inquires whether or not they would like to suppress future alert() boxes from the same webpage.

The extension offers a streamlined way of suppressing any future alert messages that may intrude on your browsing experience. This can help users stay fully focused on their tasks without the frustration of constant interruptions. Additionally, it can be an excellent tool for programmers and developers to test their web pages without any disruptions from alert-popup messages.

Overall, AlertCheck is an excellent add-on for Firefox users who would like to eliminate alert() boxes during their browsing experience. It is convenient and user-friendly, providing users with a simple solution to suppress unwanted interruption from disruptive alerts. Get AlertCheck today and improve your browsing experience with ease.