Verify a couple of things:
1) Firefox IS actually running and present in the Task manager in Windows
2) Firefox has not been updated recently.
My guess is #2 happened. I looked online and see that Firefox 72 was JUST released yesterday. Currently, TestComplete only has patches available through Firefox 71 so, if you are running 72, it's probably not being recognized. You will need to roll back the Firefox version until Smartbear makes a patch available.
Best practice is to turn off automatic updates for browsers so that you have control of your environment.
Robert Martin
[Hall of Fame]Please consider giving a Kudo if I write good stuff
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Why automate? I do automated testing because there's only so much a human being can do and remain healthy. Sleep is a requirement. So, while people sleep, automation that I create does what I've described above in order to make sure that nothing gets past the final defense of the testing group.
I love good food, good books, good friends, and good fun.
Mysterious Gremlin Master
Vegas Thrill Rider
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