ProfessionalModder

**Recommended** * allow searching by filters to select a setting category then access within a dropdown at the results page

Question

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@FireCubeStudios I wanna know if https://github.com/unchihugo/FluentFlyout can be reimplemented via CubeKit to be in GlowUI

Document.referrer retirement

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### Does this feature already exist in Firefox Stable? I'm not sure ### Does this feature already exist in Firefox ESR? I don't know ### Feature description The idea is...