IPBRICK.OS v6.3 - Security-Update02 - Pidgin SSL issues

After installing Security-Update-02 for IPBRICK.OS v6.3, Pidgin users (XMPP client, instant messaging desktop application) may report difficulties connecting to the server. In such scenario please adjust Pidgin settings, one must enforce a stronger encription preferences. Proceed as follows:

1. in the Tools menu select Plugins
2. in the plugins list, select and activate the "NSS Preferences" plugin, then click on "Configure Plugin"
3. in the ciphers list, select and activate "TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d)", ok to confirm, and close all windows
4. restart the connection to the server