Hi, after updating Avast Free to the last version the plugin avast online security was removed from all Firefox version on my PC.
I tried also to repair Avast but I AM unable to find how I can install the avast Firefox plugin again.
In the extension is not installed.
I do have the same problem.
Avast Online Security plugin in Firefox 53.0.2 (x86 nl) is disappeared.
Using Windows 7 Home Premium Servicepack 1
Hi,
after some day I resetted Avast - Unistall, Repair and issue has been solved.
Hope it helps
I’ve done that last week. No result.
I’ll try again.
Thanks, problem is solved.