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Firefox Show only modified preferences

Firefox v87 let you Show only Modified Preferences on About:Config page

Firefox v87 gets options to Show only modified preferences on About:Config page

Starting with Firefox v87 (In Nightly), the company added a new option to the Advanced Preferences (about:config) page called “Show only modified preferences”. The option when enabled will show modified preferences. FYI, Advanced Preferences (about:config) is a page dedicated in the browser where you will find a list of application settings usually known as preferences.