Website monitoring (HTTP HEAD/GET), service monitoring (TCP socket test), e-mail and URL alerts.

You will need version 4 or higher of `firefox`
to run Pencil as a Firefox Extension. Linux users will need version 4 or higher of either `firefox`, `iceweasel` or `xulrunner`,
or version 25 or higher of `palemoon`
The Windows installer and OS X archive has everything you need built-in. Windows, Linux, OS X & Firefox Packages are available for download from the Releases Page
You can also install the Firefox Add-on from the Mozilla Add-on Repository
To install the OS X package, unzip the archive and copy the `` folder t

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