![from past week or so I am getting this "Did Not Connect: Potential Security Issue" on well known sites | Firefox-Hilfeforum | Mozilla-Hilfe from past week or so I am getting this "Did Not Connect: Potential Security Issue" on well known sites | Firefox-Hilfeforum | Mozilla-Hilfe](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2020-06-02-03-50-01-f8c4f2.png)
from past week or so I am getting this "Did Not Connect: Potential Security Issue" on well known sites | Firefox-Hilfeforum | Mozilla-Hilfe
![Every page results in "SEC_ERROR_UNKNOWN_ISSUER", can't view any page. | Firefox Support Forum | Mozilla Support Every page results in "SEC_ERROR_UNKNOWN_ISSUER", can't view any page. | Firefox Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2017-12-12-18-37-05-c2f22e.png)
Every page results in "SEC_ERROR_UNKNOWN_ISSUER", can't view any page. | Firefox Support Forum | Mozilla Support
![How To Fix Your Connection Is Not Secure Mozilla Firefox | Sec_Error_Unknown_Issuer Easily - YouTube How To Fix Your Connection Is Not Secure Mozilla Firefox | Sec_Error_Unknown_Issuer Easily - YouTube](https://i.ytimg.com/vi/OPqom2ySjSw/hqdefault.jpg)