Firefox for Web Developers @webdevs.firefox.com · Oct 21 New in Firefox nightly (146.0a1 2025-10-19): large lists of unused CSS custom properties are collapsed by default. This not only reduces clutter, it also massively speeds up the rendering of the inspector panel in some cases.
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Nice call, as long as it's only for larger lists. Now if someone could talk to the right person to finally stop the "Facebook Container" add-on from inserting a bunch of CSS variables in the general rules like so. This has bothered me for a few years now I guess. These are always there.
nice! would that hide annoying vars injected by extensions like, the --fbc facebook container extension on every single page?