Starting in Firefox 138, Mozilla started gating Firefox Labs features behind data collection.
Mozilla had announced that some new Firefox features would be released via Firefox Labs.
It is now a few hours since I posted, and there is reason to celebrate – Mozilla is updating Firefox Labs to let people access features without needing to enable data collection.
If you imagine that the referenced bug was present in the first place, then you’ll end up at a pretty good place: slightly bummed that you can’t both try out Labs features before they graduate and disable telemetry, but understanding that it’s a technical limitation.