- Solved
Did Not Connect: Potential Security Issue (SEC_ERROR_UNKNOWN_ISSUER)
Hi I have a problem with the configuration of my Firefox. (I hope it is not something more serious like a malware or a security break) Firefox version 124.0 (64bit) Os: … (read more)
Hi I have a problem with the configuration of my Firefox. (I hope it is not something more serious like a malware or a security break)
Firefox version 124.0 (64bit) Os: Windows 10 Pro (64bit) 10.0.19045 Build 19045
Step to reproduce
- 1. I go to: https://wwws.tesoro.es/index.aspx (website of the Spanish gov)
- 2. I click on the link: Cl@ve in the center of the page (that should bring me to https://pasarela.clave.gob.es/Proxy2/ServiceProvider)
- 3. I receive an error page "Did Not Connect: Potential Security Issue" "SEC_ERROR_UNKNOWN_ISSUER" (see the attached screenshot)
Things I tried
- I followed the same steps on Chrome on the same machine
The website works
- I followed the same steps on the same Firefox in Incognito mode on the same machine
The website DOESN'T work
- I followed the same steps on a completely new Firefox profile on the same machine
The website DOESN'T work
- I followed the same steps on Firefox on a different machine (same Firefox version, windows 11)
The website works