This is how a digital certificate is installed in Firefox
The first step in installing the digital certificate in Firefox is to obtain the .p12 or .pfx file. This file must be provided by the authority that generates the certificate, which can be a company, a public body (in the case of Spain, the most common is that of the currency and stamp factory) or similar.
Once you have the file, you can already put some flour to complete the installation. The first step is to open Firefox and access the menu from the three horizontal lines icon in the upper right corner. Once open, click Options.
Click on the Privacy and security option on the left sidescroll to the bottom of the screen and click the Show Certificates button at the bottom.
Go to the People tab or Your Certificates tab and click the Import button. In the new window, select the file with the certificate and click Open.
At this point, there are two possibilities:
- Password protected certificate: in this case, Firefox will ask you for the password to complete the installation. This password was set when the certificate was created or later manually. It is very important that you know it otherwise you will not be able to install the certificate and it is not possible to request a reset or similar. If you do not remember it or if you do not know it, you will need to apply for a new certificate.
- Certificate without password: The installation will be finished.
And with that already it would be. Once these steps are done, the digital certificate will be installed in Firefox and you can use it to access any website where it is necessary to access.
If you have more than one personal certificate, the browser will ask you which one you want to use each time. So, you can easily switch people / companies if you represent more than one.