FFOX-00-000005 - Firefox must be configured to not automatically update installed add-ons and plugins.

Information

Set this to false to disable checking for updated versions of the Extensions/Themes. Automatic updates from untrusted sites puts the enclave at risk of attack and may override security settings.

Solution

Windows group policy:
1. Open the group policy editor tool with 'gpedit.msc'.
2. Navigate to Policy Path: Computer Configuration\Administrative Templates\Mozilla\Firefox\Extensions
Policy Name: Extension Update
Policy State: Disabled

macOS 'plist' file:
Add the following:
<key>ExtensionUpdate</key>
<false/>

Linux 'policies.json' file:
Add the following in the policies section:
'ExtensionUpdate': false

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MOZ_Firefox_V6R1_STIG.zip

Item Details

References: CAT|II, CCI|CCI-000381, Rule-ID|SV-251549r807119_rule, STIG-ID|FFOX-00-000005, Vuln-ID|V-251549

Plugin: Windows

Control ID: 7c65d032478a3085f6a4ec523fd26a5b84f476c0bfb665bbf5f322f69e91ee84