The free version of 9.0 (41877) has installed on my Mac Air, but it doesn't seem stable.
The new UI has a link for Devices which causes Avast to crash. When I select the Reopen option from the OSX dialogue box Avast closes but does not restart.
The new UI also does not have any link for Maintenance, as mentioned in the email renewal notice I have just received. The link does not appear in the top-left drop downs or the Avast link in the toolbar, or in the Avast Preferences.
I am running OSX 10.6.8. I also use Firefox 30.0 as my default browser. The new Avast plugin appears to have installed in Firefox, though right now I have it disabled, and it may well stay that way. No extension installed in Safari, presumably because I have Safari extensions blocked.
Please advise.