Hope this saves you the hours of trial and error I went through.
Before proceeding, note that disabling this extension will: disable symantec endpoint protection chrome extension
If you have local administrative rights and need to temporarily disable the entire SEP client (including the extension) for troubleshooting, use the SMC command : Press Win + R on your keyboard to open the dialog. Type smc -stop and click OK . Hope this saves you the hours of trial
To disable the Symantec Endpoint Protection (SEP) extension in Google Chrome, the method depends on whether your computer is managed by an IT department (using policies) or if you have direct control over the client. For Managed Users (IT Administrators) If the extension was installed via the Symantec Endpoint Protection Manager (SEPM) disable symantec endpoint protection chrome extension