I was browsing in Chrome when a new tab opened (see screenshot) which stated: "Update Required: The Norton Safe Search extension that helps protect your browsing requires an update. Click Update Now to stay protected."
The URL displayed in the address bar for this window looks legitimate:
I didn't click update. instead I checked my Chrome extensions and saw there were 2 versions of Norton SafeSearch installed: version 3.11.4.2 & version 3.13.0.10. In Chrome extensions it appears 3.11.4.2 is the latest version and that is the version I also see linked from the Norton website. When I searched the web for SafeSearch 3.13.0.10 it doesn't show up. Is the 3.13.0.10 version malware? My guess is the safest thing to do is to just remove both versions and reinstall from chrome extensions which I assume will reinstall 3.11.4.2. Does anyone know anything about version 3.13.0.10? Other than running a norton scan and reinstalling SafeSearch is there anything else I need to do? BTW I'm on a Mac running 10.11.6 (El Capitan). Thanks for your help.