Author Topic: Neither Firefox nor Thunderbird will browse/receive mail due to Avast! Shields  (Read 3384 times)

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  • Guest
I am having problems using both Mozilla Firefox and Thunderbird to browse and receive seems that the Avast Shields are blocking access to some sites I visit (I can visit search engines but other things are blocked) and I can't receive mail. I know I need to set up Thunderbird to change the encryption but don't know how. Link me a post someone?

As to Firefox, I don't know what to do.

OS: Mac OS X Snow Leopard 10.6.8 on MacBook Pro

Thanks for helping.


  • Guest
I have presently the same problem. Since 6 September I cannot download mail with any mail program. I discovered I have to de-activate my AVAST mail shiled. But there must be better ways.

Offline tumic

  • Avast team
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The issues will be most probably caused by broken IPv6 in your network. Try to disable IPv6 in the mailshield and webshield preferences, it should fix the issue.