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user.js
Firefox privacy, security and anti-tracking: a comprehensive user.js template for configuration and hardening
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Yes, you want to update because every new Firefox version comes with several security fixes https://www.mozilla.org/en-US/security/advisories/mfsa2022-16/ and besides this arkenfox always has a thread on the changes that new FF version brings until they update the template https://github.com/arkenfox/user.js/issues/1439
I have heard of arfenfox, tried using https://ffprofile.com (their github is https://github.com/allo-/firefox-profilemaker) but it never seemed to work so I manauly hardended Firefox.