Due to a recent update with the Firefox browser, consumers using Firefox version 7 or later may have recently noticed a prompt from Firefox to disable McAfee ScriptScan. McAfee Scriptscan is a component available in McAfee® Total Protection™ software, McAfee® Internet Security and McAfee® AntiVirus Plus, SiteAdvisor or SiteAdvisor Live and protects users from malicious scripts and other exploits while surfing the Web.
McAfee quickly identified the cause, worked with the Firefox team to resolve this issue, and has rolled out an update to fix the issue. The issue, as noted in the prompt was due to an incompatibility with the latest Firefox update and not a security related issue with the component.
All McAfee Scriptscan users will automatically receive the fix, unless they have chosen to change the default update settings. To complete the fix, all users will be prompted to restart their computer.
Users can confirm if they have the fix by checking for the latest version of McAfee ScriptScan 14.4.1 under Tools->Go to Add-ons->Extensions.
For users who chose to disable McAfee ScriptScan then McAfee recommends turning it back on to ensure they are protected from malicious scripts and other exploits while surfing the Web. To enable the McAfee ScriptScan plug-in, users can do the following: Launch Firefox > Go to Tools > Go to Add-ons > Go to Extensions and click on ‘Enable’ which is next to McAfee ScriptScan for Firefox 14.4.1.