Only the WebRep toolbar was not compatible. The rest of Avast continues working in the background. Have you updated your Avast: https://forum.avast.com/index.php?topic=84297.0 Firefox has a built-in function to keep you from going to known malware and phishing sites: *Safe Browsing component: http://www.mozilla.com/en-US/firefox/phishing-protection/ *'''''Sample''''' warning screens **http://www.mozilla.com/firefox/its-a-trap.html **http://www.mozilla.com/firefox/its-an-attack.html '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.''' ------------------------- Not related to your question, but... You need to update some plug-ins: *Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/ *Next Generation Java Plug-in for Mozilla browsers: [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]