What's slightly mysterious to me is that through my firefox account it autoinstalled I think at least noscript and cookie autodelete even though they were not a

What's slightly mysterious to me is that through my firefox account it autoinstalled I think at least noscript and cookie autodelete even though they were not at the time in the mobile add-on store. I was surprised and confused to find that javascript wasn't executing by default and discovered that not only did they install but they seemed to be working. I removed them because it seemed accidental and figured they might not be ready, and they were no longer possible to install. Now I see that several other plugins are on the Firefox Preview add-on list including noscript and some others so I have the feeling that they're just being cautious about enabling them in the store but it's possible that they mostly will just work after a testing period.