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contain-facebook
Facebook Container isolates your Facebook activity from the rest of your web activity in order to prevent Facebook from tracking you outside of the Facebook website via third party cookies.
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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.
Hm, last official release was 8 months ago. The github page looks fairly active, and there is a fix merged already for this https://github.com/mozilla/contain-facebook/pull/936 and once issue #933 gets merged, it will generate a source release for 2.3.11 at https://github.com/mozilla/contain-facebook/releases which will probably become 2.3.12 on AMO after some manual intervention.