Installed Firefox 28.0 on March 18th. Had previous version of avast! running. No problem with AOS.
Installed avast! 2014.9.0.2016 on March 20th. Continuing problem with AOS as described.
essexboy, you may be right, but put yourself into the position of a user with average PC knowledge. Why should one see the trouble on the Firefox side at the first place, when the previous avast! version and its AOS were running fine with FF 28?
Come on, no reason to get angry or rude about this. All good. We'll just wait until this is fixed... by FF or avast!, whoever is faster.