How to add certificate

I am new to Brave and this is my 1st post, sorry if it is dumb!

I have a Synology NAS, which has a Synology issued certificate. Brave always tells me that it has a certificate error. This is driving me nuts. How can I save/approve or tell Brave to permanently accept/ignore this certificate?

Thanks in advance,

Unfortunately this is a limitation in the current browser to import certificates. This will be fixed once we move to brave-core which uses a rewrite of Chromium UI. There is an experimental build available to download which is still in early development stages that you can give it a try.