Mozilla Firefox Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The installed version of Firefox must be supported.
Using versions of an application that are not supported by the vendor is not permitted. Vendors respond to security flaws with updates and patches. These updates are not available for unsupported v...Rule High Severity -
Firefox must be configured to not use a password store with or without a master password.
Firefox can be set to store passwords for sites visited by the user. These individual passwords are stored in a file and can be protected by a master password. Autofill of the password can then be ...Rule Medium Severity -
Firefox must be configured to disable the installation of extensions.
A browser extension is a program that has been installed into the browser to add functionality. Where a plug-in interacts only with a web page and usually a third-party external application (e.g., ...Rule Medium Severity -
Firefox development tools must be disabled.
Information needed by an attacker to begin looking for possible vulnerabilities in a web browser includes any information about the web browser and plug-ins or modules being used. When debugging or...Rule Low Severity -
Firefox fingerprinting protection must be enabled.
The Content Blocking/Tracking Protection feature stops Firefox from loading content from malicious sites. The content might be a script or an image, for example. If a site is on one of the tracker ...Rule Medium Severity -
Firefox Enhanced Tracking Protection must be enabled.
Tracking generally refers to content, cookies, or scripts that can collect browsing data across multiple sites. It is detrimental for applications to provide, or install by default, functionality ...Rule Medium Severity -
The Firefox New Tab page must not show Top Sites, Sponsored Top Sites, Pocket Recommendations, Sponsored Pocket Stories, Searches, Highlights, or Snippets.
The New Tab page by default shows a list of built-in top sites, as well as the top sites the user has visited. It is detrimental for applications to provide, or install by default, functionality e...Rule Medium Severity -
Firefox accounts must be disabled.
Disable Firefox Accounts integration (Sync). It is detrimental for applications to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary ca...Rule Medium Severity -
Firefox encrypted media extensions must be disabled.
Enable or disable Encrypted Media Extensions and optionally lock it. If "Enabled" is set to "false", Firefox does not download encrypted media extensions (such as Widevine) unless the user consent...Rule Medium Severity -
Firefox must be configured to not automatically update installed add-ons and plugins.
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.Rule Medium Severity -
SRG-APP-000278
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Firefox must be configured to not automatically execute or download MIME types that are not authorized for auto-download.
Some files can be downloaded or execute without user interaction. This setting ensures these files are not downloaded and executed.Rule Medium Severity -
SRG-APP-000141
Group -
Firefox must be configured to disable form fill assistance.
To protect privacy and sensitive data, Firefox provides the ability to configure the program so that data entered into forms is not saved. This mitigates the risk of a website gleaning private info...Rule Medium Severity -
SRG-APP-000141
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Firefox must be configured to not automatically check for updated versions of installed search plugins.
Updates must be controlled and installed from authorized and trusted servers. This setting overrides a number of other settings that may direct the application to access external URLs.Rule Medium Severity -
SRG-APP-000141
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SRG-APP-000456
Group -
SRG-APP-000560
Group -
Firefox must be configured to allow only TLS 1.2 or above.
Use of versions prior to TLS 1.2 are not permitted. SSL 2.0 and SSL 3.0 contain a number of security flaws. These versions must be disabled in compliance with the Network Infrastructure and Secure ...Rule High Severity -
SRG-APP-000177
Group -
Firefox must be configured to ask which certificate to present to a website when a certificate is required.
When a website asks for a certificate for user authentication, Firefox must be configured to have the user choose which certificate to present. Websites within DoD require user authentication for a...Rule Medium Severity -
SRG-APP-000141
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SRG-APP-000141
Group -
Firefox must be configured to block pop-up windows.
Pop-up windows may be used to launch an attack within a new browser window with altered settings. This setting blocks pop-up windows created while the page is loading.Rule Medium Severity -
SRG-APP-000141
Group -
Firefox must be configured to prevent JavaScript from moving or resizing windows.
JavaScript can make changes to the browser's appearance. This activity can help disguise an attack taking place in a minimized background window. Configure the browser setting to prevent scripts on...Rule Medium Severity -
SRG-APP-000141
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Firefox must be configured to prevent JavaScript from raising or lowering windows.
JavaScript can raise and lower browser windows to cause improper input. Configure the browser setting to prevent scripts on visited websites from raising and lowering browser windows.Rule Medium Severity -
SRG-APP-000141
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SRG-APP-000141
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Background submission of information to Mozilla must be disabled.
Firefox by default sends information about Firefox to Mozilla servers. There should be no background submission of technical and other information from DoD computers to Mozilla with portions posted...Rule Medium Severity -
SRG-APP-000266
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SRG-APP-000175
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Firefox must have the DOD root certificates installed.
The DOD root certificates will ensure that the trust chain is established for server certificates issued from the DOD Certificate Authority (CA).Rule Medium Severity -
SRG-APP-000326
Group -
Firefox must prevent the user from quickly deleting data.
There should not be an option for a user to "forget" work they have done. This is required to meet non-repudiation controls.Rule Medium Severity -
SRG-APP-000141
Group -
Firefox private browsing must be disabled.
Private browsing allows the user to browse the internet without recording their browsing history/activity. From a forensics perspective, this is unacceptable. Best practice requires that browser hi...Rule Medium Severity -
SRG-APP-000141
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Firefox search suggestions must be disabled.
Search suggestions must be disabled as this could lead to searches being conducted that were never intended to be made.Rule Medium Severity -
SRG-APP-000141
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Firefox autoplay must be disabled.
Autoplay allows the user to control whether videos can play automatically (without user consent) with audio content. The user must be able to select content that is run within the browser window.Rule Low Severity -
SRG-APP-000141
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Firefox network prediction must be disabled.
If network prediction is enabled, requests to URLs are made without user consent. The browser should always make a direct DNS request without prefetching occurring.Rule Medium Severity -
SRG-APP-000141
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SRG-APP-000141
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Firefox cryptomining protection must be enabled.
The Content Blocking/Tracking Protection feature stops Firefox from loading content from malicious sites. The content might be a script or an image, for example. If a site is on one of the tracker ...Rule Medium Severity -
SRG-APP-000141
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SRG-APP-000141
Group
Node 2
The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.