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.
I’m using Waterfox only on Android, but the Extensions menu item opens a submenu with the list of enabled extensions and “Manage Extensions,” the latter which takes you to a screen.
It looks the same as Firefox, as far as I can tell.
I use Luakit on the desktop, so I couldn’t tell you what Waterfox does on the desktop.