If you need to uninstall the idCAT Certificate because you have revoked it, it has expired or because you will no longer use it, you will need to follow the following steps depending on the browser or device from which you want to uninstall it:
Step 1 : Go to Tools > Settings > Privacy & Security > Show certificates
Step 2 : select the certificate with your name, issued by EC-Ciutadania, and click the "Delete" button.
Step 3: Select that you agree to delete the certificate:
You will no longer be able to use the idCAT Certificate in the Firefox browser.
Step 1: Go to the three vertical dots button 
from the upper right. Option "Settings" > Privacy and Security > Security > Manage certificates .
Step 2 : select the certificate with your name, issued by EC-Ciutadania, and click the "Remove" button.
Step 3 : The wizard will ask you if you want to delete the certificate; select yes:
It will no longer be possible to use the idCAT Certificate in the Google Chrome browser.
Step 1: Go to Keychain Access > Login > My Certificates
Step 2: Select the certificate you want to remove, you will see that it shows you that it has a private key
Step 3: on the private key of the certificate, click the right mouse button, a window will open with several options, select "Delete".
Step 4: The wizard will ask you if you want to delete the certificate; confirm it by pressing the delete button.
You will no longer be able to use the idCAT Certificate on the Mac.
Step 1: In the Microsoft Edge browser, go to the three horizontal dots button from the top right > Settings > Privacy, search and services tab > Security. At this point, click on the "Manage Certificates" button and then the "Personal" tab.
Step 2: select the certificate with your name, issued by EC-Ciutadania, and click on the "Remove" button.
Step 3 : the wizard will ask you if you want to delete the certificate; press the Yes button.
You will no longer be able to use the idCAT Certificate in the Microsoft Edge browser.
Step 1 : Go to "Settings" > "Security & Privacy" > "Other Security Settings" > "User Certificates" (this path may vary by model, if it doesn't match your device, search with the magnifying glass " user certificates") and select your certificate by clicking on your name:
Step 2: Click "Remove"
The idCAT Certificate will no longer be usable on this Android smartphone or tablet.
Step 1 : Go to "Tools" > "General" > "VPN" and in the "Configuration Profiles" section select your idCAT Certificate by clicking on your name:
If you have more than one certificate and are unsure which is the idCAT Certificate, you can check which one it is by accessing "More details". It must be issued by "EC-Ciutadania":
Step 2: Click "Delete Profile"
Step 3: Enter your iPhone code:
The idCAT Certificate can no longer be used on this iPhone/iPad.
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