I am not able to generate script using jmeter

Question

I am not able to generate script using jmeter. Getting below error.

Response code: 
Response message: Received fatal alert: certificate_unknown
**ensure browser is set to accept the JMeter proxy certificate**

Can some one help what would be the issue. I have already installed JMeter _CA certificate.

Answer 1

When you record new script with JMeter's HTTP(S) Test Script Recorder it generates new certificate. Probably you install several certificates or did not enable checkbox "Trust this CA to identify websites"?

Check this quick guide for getting started with JMeter Recording

How to remove old and add new certificate in Firefox:

1. Start Firefox
2. Open menu
3. Options
4. Privacy & Security
5. View Certificates
6. Ensure there are no certificates starts with names "_DO NOT INSTALL..", "DO NOT INSTALL..", "JMETER..", "_JMETER.." and other related to JMeter cerificates, and Delete them if they present.
7. Click Import.
8. Navigate to your JMeter bin dir and choose ApacheJMeterTemporaryRootCA.crt file.
9. Check Trust this CA to identify websites.
10. Press Ok