Thank you for the post @GKumar
in order to forward all Firewall logs from Panorama to 3rd party syslog server, you have to set it up under log collector. Please navigate to: Panorama > Collector Groups > [Click on Collector Group name] > Collector Log Forwarding > Then navigate to Traffic, Threat, URL,... click on add and select syslog server profile.
Here is the corresponding KB: https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClIsCAK
Please note that if you have multiple log collector groups, you will have to the the same setting for each log collector group. Also do not forget to commit configuration and push the configuration to log collectors. After this step, you should be able to see Firewall logs in Qradar
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