File blocking and Google Chrome

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File blocking and Google Chrome

L1 Bithead

Hi there! 

I have the problem that the file blocking no longer works properly at the chrome browser.


The fileblocking profile was configured and appended to the rule, but I can still download msi files. PANOS 9.1.0








Does anyone have suggestions how i can fix this? 🙂


L3 Networker



Chrome sometimes using tricky quick protocol so in firewall appliaction as seen "quick" in firewall logs. Do you have any chance to try this.


For Security Rule;

From a Test host to internet block "quick" so chrome cannot change its behaviour.

For Decryption Rule;

From a test host to internet decrypt all traffic.

*I am using TCP and UDP 443 on decryption policies.


Then analyze log maybe this method can give a clue about why msi file not blocked by firewall.


*before testing be sure, there are no active connection exist from test host to internet, monitor tab>session browser if there is any kill them all.


Have a nice day.



Quic is already blocked (see screenshot in my first post) and the traffic is decrypted successfully. 😕

My PA-820 doesn't recognize the resume-download as an msi file.


I think this issue has occurred since the update to 9.0 a few months ago.

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