Yes, it is false positive.
There is no virus, however since there is chronicler_win.exe file that tracks which app is open and if the user is idle, sometimes Windows defender or antivirus treats this as a malware activity.
You can whitelist it and it should work properly. Probably you will need to reinstall extension, if you won’t be able to open it, because quarantined file could broke extension signature.
That said I will try to purchase code signing certificate and it might remove such warnings, as it will be more credible with signature, maybe…
