> For the complete documentation index, see [llms.txt](https://docs.advancedrestclient.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.advancedrestclient.com/using-arc/frequently-asked-questions.md).

# Frequently asked questions

## The certificate doesn't work

In the **Chrome application,** there's little we can do to help. In the **desktop application,** there's a mechanism to manage client certificates. Open the certificates manager from Request > Web Session > Client certificates menu. After adding a certificate to the application internal store you can choose it in the request editor, in the Authorization tab.

## Can I set up a proxy?

Version 16 and below do not offer proxy configuration. This was added in version 17.