Last avast emergency update and problems with firefox

I have same problem with this random .exe executed from the avast emergency update,

If i let to pass this application with my firewall then the save as option in Firefox dont work anymore, and also all the bottons from the tool/setup from firefox that need to open a Examine…

Using a restore point from Windows and reinstalling firefox saving my profiles, i get again firefox working right, but if i let to work this emergency update process from Avast again firefox fails!

Any idea about this?

Why a antivirus do works improperly a existing explorer application that before this emergency update works fine?

best regards

CFalcon

What firewall are you using?
What exact version of avast do you have installed?

I was using last version 27.0.1 , but i did read in internet that using the 24.3.0esr dissapears this problem, and i’m using now this version and all works fine now.

Avast is program version 2104.9.0.2013, free version.

Is a temporal solution because when firefox launch a ESR version 27 i suposse users will get same error.

(I had this issues doing the emergency update that did avast automatically)

best regards