Firefox has issued a new version, 41.0.1, which includes security updates. The new version disables the Norton Toolbar (version 2015.5.4.10) and Identity Safe. Per the Firefox Tools/Add-ons drop-down, "Norton Toolbar is incompatible with Firefox 41.0.1." Thus, Norton Toolbar and Identity Safe are not currently usable for Firefox users who update their browser to get the latest available security updates. Symantec needs to develop an update to Norton Internet Security which makes them usable again.