McAfee Site Advisor is not compatible with Firefox 5. It is McAfee's responsibility to fix that. My understanding is that McAfee had planned an updated release in the 3rd week of July which has now been rescheduled for late August. NOTE: Your McAfee protection is not affected, just that McAfee toolbar that is installed by McAfee into Firefox. As far as I am concerned, such toolbars are not needed and are a duplication of what is already built in to Firefox. I do Disable the toolbar supplied by my security software provider and just depend on the built in Firefox function: *[http://www.mozilla.com/en-US/firefox/phishing-protection/ Firefox built-in malware and phishing protection] *Warning screens from Firefox: **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.''' ------------------------------- Also, become familiar with the Site Identity Button for site encrytion security (purchasing with credit cards online, etc.) instead of the old padlock which is no longer shown in Firefox. The padlock did not supply enough information and could give a user a false sense of security on some sites: *https://support.mozilla.com/en-US/kb/Site+Identity+Button *http://www.dria.org/wordpress/archives/2008/05/06/635/ You can install this add-on if you wish: *https://addons.mozilla.org/en-US/firefox/addon/padlock-icon/ ---------------------------- 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/ *Adobe PDF Plug-In For Firefox and Netscape: [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox] *Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]