Mr Uptime is an extension for your Firefox browser that comes in handy when you come across a website that’s experiencing down time. MrUptime allows you to quickly add such websites to the watchlist and will alert you as soon as the website is back online.
- Monitor down/error pages by: server status code (i.e. when status changes from error to OK) or by keyword/s on the webpage (see demo below).
- Watchlist Duration: Specify Set how long you want to keep checking a website. (24 hours, 120 hours, etc)
- Alerts: Get notified when a website is working again.
- MrUtime Toolbar: Only shown when an error page is encountered or when you choose to open it manually.
Go to MrUptime [pingdom.com]