> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/resources/other-resources/install-root-certificates.md).

# Install root certificates

Install root certificates on Windows or Linux to establish trust for self-signed certificates used by Devolutions applications.

Here is the procedure to install root certificates.

{% hint style="info" %}
Firefox does not trust the same certificates as Windows and a setting must be applied to enable this.

Please consult [Mozilla's knowledge base article](https://support.mozilla.org/en-US/kb/setting-certificate-authorities-firefox).
{% endhint %}

{% tabs %}
{% tab title="Windows" %}

1. Open the Microsoft Management Console by searching for ***MMC*** in the ***Start*** menu. Another way is to press the <kbd>Windows</kbd>+<kbd>R</kbd> keys on your keyboard and, in the ***Run*** window, search for ***MMC***.
2. Select ***File – Add/Remove Snap-in***.
3. In the ***Available snap-ins*** box, select ***Certificates***.
4. Click the ***Add*** button.
5. In the wizard, select ***Computer Account***, then click ***Next***.
6. Select ***Local computer***, then click ***Finish*** to end the wizard.
7. Click ***OK*** to save your changes. This action will also close the ***Add or Remove Snap-ins*** dialog.
8. In the console, select ***Certificates (Local Computer)***.
9. In the ***Logical Store Name*** box, right-click ***Trusted Root Certification Authorities*** and select ***All Tasks – Import***.
10. Follow the instructions in the ***Certificate Import Wizard*** and provide the certificate file you have.
    {% endtab %}

{% tab title="Linux" %}

1. sudo mkdir /usr/local/share/ca-certificates/extra
2. sudo cp ca.crt /usr/local/share/ca-certificates/extra/ca.crt
3. sudo update-ca-certificates

Watch for a "1" added in the output messages.
{% endtab %}
{% endtabs %}


---

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