The title of this comes from an old Reddit post.

So there’s only one channel in this motel. This morning when I was getting ready I was watching Sesame Street. They were doing this bit where some clown was trying to wash his hands but kept washing his feet or his elbows and Elmo would go, “no mister noodle, your HANDS!” and all the kids would laugh. Around the fourth or fifth time he couldn’t find his hands, I heard a grown man yell from somewhere else in the motel, “GODDAMMIT, MR. NOODLE.”

Basically now that’s me when a new version of Firefox comes out. So much useful stuff gone that you have to get an extension for, so many opportunities missed, so many fads chased. I’m surprised that Firefox didn’t have a feature to get you to eat Tide Pods back when that was a thing.

Anyway, good morning, Firefox 142. And, crap, there are a lot of browser.ml options in about:config. Now I have to spend Saturday morning finding the Battery-Draining “Garbage” AI in Firefox and turning it off.

screenshot of all the browser.ml entries in about:config

Can I get a goddammit, Mr. Noodle? All right, let’s get this over with.

  • Remove chatbots. In the sidebar, choose the settings icon. In the Customize sidebar panel, uncheck the AI chatbot box in the Firefox tools section. (This means that if you look at browser.ml.chat.enabled it should be False.) Another thread: how to remove AI from my Firefox?

  • Remove smart tab grouping: set browser.tabs.groups.smart.enabled to False.

  • turn off local machine learning: set browser.ml.enable to False. This does not seem to turn off Firefox’s built-in translation feature, which is also ML-based. So maybe a better name for the preference would be browser.slop.enable? (According to most sources, this setting should turn all the ML features off, but apparently translation is an exception for now.)

Or just go to about:config and make sure these are all false:

  • browser.ml.chat.enabled
  • browser.tabs.groups.smart.enabled
  • browser.ml.enable

(update 3 Oct 2025) One more, for Firefox on Apple iOS: turn off AI summaries in Firefox on iOS

Any others? I’ll update this post with any replies from other Firefox users (the Oakland baseball fans of IT) on the Fediverse or mailing lists.

Removing AI/Machine Learning/LLM integrations from Firefox has some more explanation of what these do, along with instructions for Firefox for Android.

Two pieces of good news, though. Mozilla’s first attempt at an adfraud in the browser feature looks like it will be going away next release (although they’re still going through the motions at W3C and could bring it back any time). And, well, Mozilla does tend to buy in to expensive trends at the top—so the fact that they’re so fired up about AI slop in the browser is one more data point indicating that the much-awaited AI bubble pop is near. And one more possible piece of good news. The search antitrust thing could actually be good for them. If Mozilla management can’t rely on an endless flow of Google cash to do stupid shit, they might have to cut some…superfluous…execs loose and play more nicely with open source, kind of like how OSDL had to clean up their big-spending, frequent-flying act and morph into the more responsive Linux Foundation.