DejaClick Is Supported on the latest version of Firefox (currently 55.0.2)
DejaClick is supported on FireFox 55.0.2.
One can find the DejaClick Plugin For FireFox at:
https://addons.mozilla.org/en-US/firefox/addon/dejaclick/
Starting with FireFox 57, DejaClick will no longer work with this version and future FireFox versions.
It is possible to retrieve an earlier version of FireFox at:
https://ftp.mozilla.org/pub/firefox/releases/
To find the releases, watch this video:
FireFox 38 - Where To Find It
https://vimeo.com/231459690
Since our monitoring locations run FireFox 38, we recommend a Custom installation of FF38. One can then add the DejaClick Plugin to it.
Also, please note, AlertSite has augmented/upgraded all of our monitoring locations to also run Chrome. (We are running Chrome version 47.)
This information is also found in the Knowledge base: