Hey there!

Please see the following website on how you can enable TLS 1.0 on FF:

https://support.mozilla.org/en-US/questions/1101896

Hope I helped!

Kind regards,

Bithiah

Leider hat das mein Problem nicht gelöst. Die yahoo Seite lässt sich immer noch nicht öffnen. Meine Eingaben sind: security.tls.version.max 1 security.tls.version.min 1

I'm sure that yahoo supports TLS1.2, but doesn't work right now at all.

https://downdetector.com/status/yahoo/

Please switch these preferences to default values.

You can check the server.

• https://www.ssllabs.com/ssltest/

You can check your browser for comparison.

• https://www.ssllabs.com/ssltest/viewMyClient.html

You can check the connection settings.

• Settings -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

• https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

• https://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10/