Pondus
2
all in/out traffic goes true avast webshield…so MBAM see this as coming from avast…not correct 
you are not the first one to ask, so many topics if you search
and here is some info about how/what MBAM block and why when surfing the net
Oh, the Sites You Will Never See
http://blog.malwarebytes.org/development/2013/05/oh-the-sites-you-will-never-see/