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Firefox 33.1 incompatible with Symantec Endpoint Firewall

  • 2 replies
  • 6 have this problem
  • 10 views
  • Last reply by doshin

doshin
doshin

This morning, I received a Firefox message indicating that a new version (33.1) of Firefox was available -- I accordingly accepted the auto-update. Since the update, I find that Firefox can no longer connect to the internet. Suspecting a Firewall issue, I disabled Symantec Endpoint firewall, and found that Firefox suddenly worked again. Since this is a work PC, I am bound to keep the firewall activated (and I wish to do so anyway). Symantec does not seem to have any capacity to add individual programs as exceptions. One has the option to allow all IP traffic, or just application IP traffic. Is the new Firefox simply incompatible with Symantec Endpoint? Why would the version that I had (33.0.3 if i am not mistaken) have worked without problem? As a further detail, I should add that when I click on the Extension/Add-on manager in Firefox, I see that Symantec Vulnerability Protection 12.3.0.3 -1 is incompatible with Firefox 33.1; I assume that this is part of the problem? (And if so, should I contact Symantec?)

This morning, I received a Firefox message indicating that a new version (33.1) of Firefox was available -- I accordingly accepted the auto-update. Since the update, I find that Firefox can no longer connect to the internet. Suspecting a Firewall issue, I disabled Symantec Endpoint firewall, and found that Firefox suddenly worked again. Since this is a work PC, I am bound to keep the firewall activated (and I wish to do so anyway). Symantec does not seem to have any capacity to add individual programs as exceptions. One has the option to allow all IP traffic, or just application IP traffic. Is the new Firefox simply incompatible with Symantec Endpoint? Why would the version that I had (33.0.3 if i am not mistaken) have worked without problem? As a further detail, I should add that when I click on the Extension/Add-on manager in Firefox, I see that Symantec Vulnerability Protection 12.3.0.3 -1 is incompatible with Firefox 33.1; I assume that this is part of the problem? (And if so, should I contact Symantec?)

Chosen solution

Hello! Thank you for your reply. Unfortunately Symantec Endpoint does not allow the user to set individual permissions for applications (even at Admin level). However I have solved the problem! I realized that the version of Symantec Endpoint installed on my PC was 12.4111.4516, and that there was a newer version (12.5) available. My corporate server does not alert me to new versions of software available -- but after I installed 12.5, everything works again. For the other user who also has this problem, even if you don't have access to 12.5, you may want to see if you can reinstall Symantec Endpoint to see if that works for you.

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All Replies (2)

user633449
user633449

You probably need to delete and re-add the Firefox rule in the Firewall. Configure firewalls so that Firefox can access the Internet

doshin
doshin Question owner

Chosen Solution

Hello! Thank you for your reply. Unfortunately Symantec Endpoint does not allow the user to set individual permissions for applications (even at Admin level). However I have solved the problem! I realized that the version of Symantec Endpoint installed on my PC was 12.4111.4516, and that there was a newer version (12.5) available. My corporate server does not alert me to new versions of software available -- but after I installed 12.5, everything works again. For the other user who also has this problem, even if you don't have access to 12.5, you may want to see if you can reinstall Symantec Endpoint to see if that works for you.