stable21 Jul 2026 to 13 Oct 2026

Mozilla Firefox: 8.0 to 8.4

17 new settings, 3 changed since 8.0. 4 retained releases apart.

New settings

17 settings · compared with 8.0

EnabledNew
Computer and user · Mozilla\Firefox\Content Analysis (DLP)\Interception Points\Clipboard Copy
Disable launch on loginNew
Computer and user · Mozilla\Firefox
Blocked widgetsNew
Computer and user · Mozilla\Firefox\Firefox Home\Widgets
Plain Text OnlyNew
Computer and user · Mozilla\Firefox\Content Analysis (DLP)\Interception Points\Clipboard Copy
WidgetsNew
Computer and user · Mozilla\Firefox\Firefox Home\Widgets
Maximum connectionsNew
Computer and user · Mozilla\Firefox\Content Analysis (DLP)
Enable online suggestionsNew
Computer and user · Mozilla\Firefox\Firefox Suggest (US only)
Smart WindowNew
Computer and user · Mozilla\Firefox\Generative AI
Enable CNSA 2.0 key agreementNew
Computer and user · Mozilla\Firefox
Notification period (hours)New
Computer and user · Mozilla\Firefox\Required Relaunch After Update
Relaunch hourNew
Computer and user · Mozilla\Firefox\Required Relaunch After Update
Relaunch minuteNew
Computer and user · Mozilla\Firefox\Required Relaunch After Update
Default search engine for private browsingNew
Computer and user · Mozilla\Firefox\Search
Enable default browser settingNew
Computer and user · Mozilla\Firefox
ExceptionsNew
Computer and user · Mozilla\Firefox\Clear data when browser is closed
Site Policies (JSON)New
Computer and user · Mozilla\Firefox
Site Policies (JSON on one line)New
Computer and user · Mozilla\Firefox