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Mozilla Under Fire For Firefox AI 'Bloat' That Blows Up CPU and Drains Battery (neowin.net) 107

darwinmac writes: Firefox 141 rolled out a shiny new AI-powered smart tab grouping feature (it tries to auto-organize your tabs using a local model), but it turns out the local "Inference" process that powers it is acting like an energy-sucking monster. Users are reporting massive CPU spikes and battery drain and calling the feature "garbage" that's ruining their browsing experience.
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Mozilla Under Fire For Firefox AI 'Bloat' That Blows Up CPU and Drains Battery

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  • by Anonymous Coward

    You don't need 900 open tabs and at the same time Mozilla should stop shooting themselves in the foot. They're almost beat by Samsung's browser in terms of market share. https://gs.statcounter.com/bro... [statcounter.com]

    • by davidwr ( 791652 ) on Tuesday August 12, 2025 @11:31AM (#65584800) Homepage Journal

      I need 640K tabs open, that should be enough for anyone.

    • 900 tabs is way too few.

  • by DesScorp ( 410532 ) on Tuesday August 12, 2025 @10:10AM (#65584542) Journal

    All I want is a mainstream-supported fast, simple, clean browser with an efficient rendering engine. That's it. I don't want an AI "helper". This isn't an Iron Man movie where I'm Tony Fucking Stark talking to JARVIS. And if I wanted an AI to talk to, it wouldn't be a component in my goddam browser.

    Build a web portal for that shit and otherwise leave us be.

    • All I want is a mainstream-supported fast, simple, clean browser with an efficient rendering engine. That's it. I don't want an AI "helper". This isn't an Iron Man movie where I'm Tony Fucking Stark talking to JARVIS. And if I wanted an AI to talk to, it wouldn't be a component in my goddam browser.

      Build a web portal for that shit and otherwise leave us be.

      YOU'LL TAKE AI EVERYTHING AND YOU'LL LIKE IT!

      Or at least, that appears to be the stance of every single god damned company involved in producing tech. I don't really understand it because I have yet to hear a single user say they want more AI in everything, yet that seems to be the only thing any of these companies are interested in producing, more AI, more places, more invasive, more intrusive. Why? Because fuck you, serfs. Do as you're told and feed the AI.

    • Re: (Score:2, Flamebait)

      by GoTeam ( 5042081 )

      All I want is a mainstream-supported fast, simple, clean browser with an efficient rendering engine. That's it. I don't want an AI "helper". This isn't an Iron Man movie where I'm Tony Fucking Stark talking to JARVIS. And if I wanted an AI to talk to, it wouldn't be a component in my goddam browser.

      Build a web portal for that shit and otherwise leave us be.

      You might as well ask them to throw in blackjack and hookers too. They don't do fast, simple, or clean anymore.

    • by drinkypoo ( 153816 ) <drink@hyperlogos.org> on Tuesday August 12, 2025 @10:51AM (#65584672) Homepage Journal

      Firefox was supposed to be a platform that you extended with add-ons if you wanted to do fancy shit.

      Instead they are forcing fancy shit on us by putting it directly into the browser.

      If this kind of functionality must be included for some reason, it should at least be an add-on which can be conveniently disabled.

      • I mean, it doesn't even get installed until you choose to install it, and it can be removed at any time. I don't think having AI extensions that aren't shipped with the browser and need to be explicitly enabled don't really qualify as "bloat". This should just be an article about how their smart tab grouping feature is broken.

      • >"Instead they are forcing fancy shit on us by putting it directly into the browser."

        I agree it should be an addon, but it is not being forced on us. You can turn off the local AI thing with:

        browser.tabs.groups.smart.enabled False

        Takes about 20 seconds? And if you aren't even using tab groups, it won't do anything in the first place. I am going to turn off tab groups, anyway, because I don't find them useful and just activate it by accident on occasion:

        browser.tabs.groups.enabled False

        • Having that shit in the browser at all lurking where they can turn it back on with an update like they have done to me repeatedly with "features" in the past is having it forced on us.

    • How to turn it off (Score:5, Informative)

      by Brain-Fu ( 1274756 ) on Tuesday August 12, 2025 @10:58AM (#65584694) Homepage Journal

      Open a firefox tab and type "about:config" in the address bar.

      Then find these two settings and set them to false:

      browser.tabs.groups.enabled
      browser.tabs.groups.smart.enabled

      (I haven't tried this yet, just found these instructions online).

    • I installed LibreWolf yesterday and it's *amazing*. I hadn't even heard of it until yesterday and it's faster and cleaner than both Safari (on MacOS) and Firefox. Firefox plugins still work (which is great because I love TreeStyle Tabs and the YouTube plugins), and it comes with UBlock Origin by default. Seriously, I think it'll fit your bill.

    • You are so wrong. I am sitting in a chair which has AI. The paint on my walls has AI. I really can't live without it. AI even wrote this comment.

    • by AmiMoJo ( 196126 )

      Sounds like you want Chrome. Personally I find it hard to live without Ublock Origin, so I'm on Firefox. It does break some sites, although I sometimes can't tell if that's down to Firefox, or Ublock, or some other privacy add-on, or because I'm behind a VPN.

    • Install Brave and turn off the extras in the Preferences?

      It takes two minutes and doesn't bother you again.

      Spend an extra two minutes to set up a sync chain, though - it's secure and handy.

  • by pz ( 113803 ) on Tuesday August 12, 2025 @10:13AM (#65584556) Journal

    Patrick Winston, one of the fathers of classical AI, was known for famously, and derisively, predicting that we would have a microprocessor in every door knob, thanks to the microelectronics revolution. Thankfully, he was mostly wrong as even IoT didn't get quite that far. But it sure feels like AI is going in that direction.

    Ferchrissakes, why do we need an AI to autogroup our browser tabs? I mean, WTF?

    • Uhm, there are doorknobs with microprocessors and NFC these days that validates that a physical key is allowed to turn the lock so Winston's prediction isn't that far off to be entirely realized.

      • Literally every door in the building I work in has this, RFID doorknobs on every single door.

    • Most people (including us techies) are lazy, and most people do not suffer from variable degrees of OCD as us terchies do, hence the need of autogrouping tabs.

      Either by TNNs, hidden Markov Models, crowdsourcing or any other thechnique

      • That all depends on how you use them. Personally, I use them mostly to follow branching threads here on./ and close them as soon as I've followed a branch to its end. Either that or to look things up in Wikipedia, such as expansions of an initialism, or the meaning of a technical term and again, close them when finished. I don't think that I've ever left a tab open and unused for hours at a time, because I don't see the point of it and, in fact, I don't understand why people d that. Having my open tabs
    • Patrick Winston, one of the fathers of classical AI, was known for famously, and derisively, predicting that we would have a microprocessor in every door knob, thanks to the microelectronics revolution. Thankfully, he was mostly wrong

      He was not necessarily wrong. We are still headed there. The only question is whether industrialized society will survive long enough to reach that point.

    • by ewhac ( 5844 )

      Thankfully, he was mostly wrong...

      Um, when was the last time you stayed at a hotel?

      There's a microprocessor in every doorknob.

    • by AmiMoJo ( 196126 )

      I'm actually a little surprised that nobody has made an IOT doorknob yet. It would actually be useful. People already buy devices to tell them when windows are open. It's nice to be able to see that everything is shut and ready for you to go out/go to bed. They can also alert you if the window opens when you are not home, or asleep.

      No need for a battery, the energy produced by the movement of the door, the knob, and the latch would be enough. Like those battery free wireless light switches. I imagine there

    • Thankfully, he was mostly wrong as even IoT didn't get quite that far.

      Give it time. No I'm not joking, have you ever been to an air-bnb, or a hotel, or entered a secure room? Do you actually know someone who really like's gadgets? My father a keypad doorknob on his front door as do many other examples in the first sentence. We definitely have doorknobs with chips in them, we have door handles and knobs with finger print readers, with smart card readers, with keypads above them, just everyone hasn't gone out and bought them ... yet.

    • by chefren ( 17219 )

      At some point the browser won't even load the websites anymore, it will just generate an approximation of them using AI..

  • I have v141, but I don't see this on Linux (Kbuntu). The article doesn't say it, but I'm wondering if this is an MS platform problem only. A person in the article said they didn't see it on Mac either.

  • This "feature" will not be available until about june 2026. By then it will either be polished or be removed...

    All advantages

  • Dropped (Score:4, Interesting)

    by JBMcB ( 73720 ) on Tuesday August 12, 2025 @10:43AM (#65584646)

    I stopped using Firefox after about the fourth time they shoehorned something in that nobody asked for and nobody used or liked. After two or three pointless UI changes that made it harder to get to the functions I use all the time, they added Pocket, a poorly implemented tab grouping feature, then dropped support for most of the extensions I use while installing extensions I didn't ask for.

    Now I use Brave, which is Chrome with all the junk you don't want removed. The only thing I would change is the ability to fix the wonky toolbar. Other than that it's nearly perfect.

    • If it makes you feel any better, Pocket is gone [mozilla.org].

      Yes, the same Pocket they spent $20M on specifically to get more chances to collect user data.

    • Re:Dropped (Score:4, Insightful)

      by thegarbz ( 1787294 ) on Tuesday August 12, 2025 @06:27PM (#65586026)

      I stopped using Firefox after about the fourth time they shoehorned something in that nobody asked for

      Users never ask for anything. That is how product development and marketing worked. Users never asked for a phone that was just a glass front panel, in fact we mocked the idea. Brave and Chrome develop nothing but features that no one asks for.

      That's literally how everything works.

  • by devslash0 ( 4203435 ) on Tuesday August 12, 2025 @10:51AM (#65584670)

    Let's be honest. Firefox has been on a downward slope for a long, long time. For those few who were faithful to Firefox, those who chose it for configurability and relatively little bloat, adding AI to it, especially AI so detrimental to the user, is just the last nail in the coffin. Firefox won't be around for much longer, I'm afraid.

    • by Tx ( 96709 )

      I used Firefox from version 0.9 or something all the way up until a couple of years ago, when I finally had enough. I think the remaining userbase are fairly determined to keep an alternative to Google alive though, since pretty much everything else is Chromium-based, and that is a noble goal. So I hope Mozilla somehow avoids driving Firefox into the ground, although they also seem quite determined.

    • Dude, I am one of the most pessimistic people around and you are wrong. Firefox will die when it stops receiving money and the users are not the source of money, so none of this matters. They could make Firefox wholly unusable and it would still exist until the money runs out.

  • by khchung ( 462899 ) on Tuesday August 12, 2025 @11:00AM (#65584698) Journal

    The most asked question is : "How to turn it off?"

    Don't Firefox devs ever thought why is that?

    • That is why everyone is moving to Chrome, where AI is already built in.
    • That's not just true of Firefox.
    • Well, you can choose to just not install it. It doesn't ship with the browser and you have to enable it and download the AI model explicitly. But, you can go to "Tools > Extensions and Themes > On-device AI" and delete any AI model that you may have installed if you don't like it.

    • I am not sure why the setting isn't in the Settings menu like other tab controls. I have a feeling it will be, in later releases, though. For now, about:config and set this to False:

      browser.tabs.groups.smart.enabled

      And if you aren't even using tab groups, it won't do anything in the first place. I am going to turn off tab groups, anyway, because I don't find them useful and just activate it by accident on occasion. In which case set this to False:

      browser.tabs.groups.enabled

      • Additionally, it looks like these will turn off the AI chatbot and possibly any future AI stuff that might show up:

        browser.ml.chat.enabled
        browser.ml.enable
        extensions.ml.enabled

    • The most asked question is : "How to turn it off?"

      Don't Firefox devs ever thought why is that?

      No one thinks why that is. They know. Users are completely resistant to change in all forms. Marketing and time exist to get users to adapt to change while about:config exists for power users.

      There's literally no change that has ever been rolled out where everyone universally likes it. Your comment can literally apply to every product ever released, including some of the most praised.

    • The most asked question is : "How to turn it off?"

      Don't Firefox devs ever thought why is that?

      What else are people supposed to ask?

      The people that like the feature are not going to ask any questions about how to keep the feature.

  • by burni2 ( 1643061 ) on Tuesday August 12, 2025 @11:03AM (#65584700)

    When Firefox has a great new idea, people ask how to turn the shit of.

    I found this answer by User "Brain-Fu ":
    https://news.slashdot.org/comm... [slashdot.org]

    And it made my day! All props to him!

  • Absolutely no one could have see this coming. How could it end up like this? Complete mystery.

  • It's great. It's everything Firefox is supposed to be. It's free, they don't accept donations because they don't need funding. It comes with UBlock Origin, it works with Firefox extensions, it's fast, it's light. It'll even sync with your old Firefox stuff if that's what you want.

    I heard about it yesterday, installed it, and now I'm all in, man. It's even better than Safari on my Mac. (The caveat is obviously that maybe after a day of use I don't know how broken it is, but I've got some hope that it will co

    • That's not a solution. If firefox take a dive, all the forks are as good as dead. Developing and maintaining a browser is a huge task these days. It is way more interesting to redirect all the knowledge, skills, and money that goes into firefox in the right direction now instead of turning a blind eye to it.

      The alternative if the upstream disappear/stops is to either severely cut down on features (making the end result virtually useless for 95% of users), move to another, dangerous upstream (hello Google),

  • by Arrogant-Bastard ( 141720 ) on Tuesday August 12, 2025 @11:27AM (#65584784)
    Users: "We need a built-in ad-blocker to protect our privacy and security".

    Mozilla: "Hey! We screwed up the address bar!"

    Users: "We need a built-in Javascript blocker/enabler to protect our privacy and security."

    Mozilla: "Look! Look! We changed the shape of the buttons! New icons!"

    Users: "We need built-in anti-tracking a la Privacy Badger and Canvas Blocker to protect our privacy and security."

    We're well past the point where we should be filing bug reports and submitting fixes or assisting Mozilla in any way. Mozilla needs to die. And while it may be difficult to find an organization/group to take Firefox away from them, it must be done. The first thing the new caretakers should do is start ripping out code -- there's over a decade of bloat and crap that needs to go. And the second thing is that the browser should have the features of the best extensions -- like NoScript -- built in.
    • by GonzoPhysicist ( 1231558 ) on Tuesday August 12, 2025 @01:49PM (#65585234)

      Why do you need them "built in"? I'd much rather have as little as possible "built in" and more of these "features" as extensions/plug-ins.

      • I don't. I'm sick of stuff breaking every time they "improve" the extension security model, especially if they should be core features, like menu organization and grouping. You really have to go out of your way to fuck that up.

        The real problem, of course, is that they insist on fucking things up. Alas, the reality is that a ton of 3rd-party extensions isn't going to fix that. That's exactly why Mozilla is dying.

    • Sorry but no I disagree. I don't want any of that built in to the browser. I want the choice of plugins and systems that can do that in different ways as there are different methods to do each and they are created with different levels of competence. I ask for a good plugin architecture which works. Firefox provides that. I don't want them touching any of the above, don't pretend you speak for all users.

      Also not sure why you think the address bar is screwed up. Seems to work just fine. While I don't care ab

  • I think they need to urgently get rid of the clowns that pass for "leadership" there.

    • “It is difficult to get a man to understand something, when his salary depends on his not understanding it.” - Upton Sinclair
      Mozilla gets a lot of money from Google. They do what works best for Google.
    • by burni2 ( 1643061 )

      The staff is on the payroll of your biggest competitor .. what do you expect, real competition?

  • At this point, I'm surprised anyone is still using Firefox. Mozilla needs to die already for the good of computing.
  • When was the last time a new browser feature made people happy? What was the last one people actually used? Let's roll back to that.

    I think most people just want a browser that does its job fast and smooth, and doesn't sell your data. Anything else can be an extension.

  • Who is this for? This seems to have been designed by people who would never, ever have more than the minimum number of tabs open that think it would be helpful to people completely unlike themselves. This is the fever dream of an OCD person trying to "fix" the life of someone who is the polar opposite. This is equating messy with disorganized. Messy can be organized in a way others just can't understand. I don't think there are more than a handful of people in the world who would actually use this feature.

    I

    • The good news is that the feature is not enabled automatically. You'd have to manually group the tab, then click a button for firefox to suggest a name See: https://assets-prod.sumo.prod.... [mozgcp.net]
      • At no point did I state or imply it was enabled by default. Not sure what post you thought you were replying to.

  • I stay behind the curve. Several versions behind. Let someone else suffer with all the crapulence of new and shiny.

    The people at Mozilla need to get their heads out of their asses and make a browser like they used to. Go back to the Phoenix implementations and see what was done right and learn from that. The first thing they can do is put back the checkbox to never remind people there is an update and stop harassing people.

  • I wish Firefox would be more like Craigslist - a determined focus on keeping the same operations and look over decades, while only updating the underlying code as needed to keep functionality in the changing web landscape. No new features. No chasing the cutting edge. Just simply work and keep working, let the new features be handled by optional extensions and plug-ins from other companies. Let them drive the change, take the risks, and if people actually want them, the number of downloads will tell you what works. If everyone is using extension x, then Mozilla can either buy them and integrate it, or just put it on the recommended extension list. If Chrome comes out with a new "killer" feature that is actually in demand, maybe Mozilla writes an optional extension, or maybe just wait for another group to do it for them. But the core browser should look and behave the same.

    The organization would be a lot leaner, development costs would plummet, consumers would be happier, and risks exported to other companies.

    • No. A fork of it needs to be that. Craigslist bucks the trend of all development (and it's not a software program so this may not even apply to craigslist) in that its unchanging stale interface didn't lead to declining market share. For applications users (not us power users, but the general unwashed masses) expect visible development that results in change to them. It is what keeps things fresh.

      Unchanging interfaces die into irrelevance as users seek new hotness. There's a place for it, but it is not in t

  • I bought-in to Mozilla when they did that full-page NY Times ad.

    I want a refund. They listened to no one and ruined Firefox.

  • Ladybird can't get here soon enough.

  • One thing I did a while back on Xubuntu, is uninstall the Firefox snap.
    Then uninstall snap itself.
    Then use the Ubuntu Mozilla Team repository to install the ESR version of Firefox.


    sudo add-apt-repository ppa:mozillateam/ppa
    sudo apt update

    sudo apt install firefox-esr

    That is it!
    You don't have updates that are too frequent, and you don't get the bleeding edge features like this AI crap.

  • So the actual advancements in LLMs (and better systems) can actually begin

    • We've already reached peak LLM. The best models we'll ever make have been done. Everything post-hence is too tainted by an internet clogged to the brim with AI generated content and dead-internet--ai-bots and is already suffering model collapse and other recursion.
    • by HiThere ( 15173 )

      It's already happening. It's just that the actual uses are being drowned out by advertising/crap/PR/??.

      There isn't just one flow of things happening. Most of the noisy ones are crap, but they aren't the only ones.

  • Toggles (Score:4, Interesting)

    by allo ( 1728082 ) on Tuesday August 12, 2025 @03:33PM (#65585476)

    The source article says one should toggle "browser.ml.chat.enabled", but that switch controls if the sidebar (basically an iframe) that is thought for accessing LLM web interfaces is hidden or not. The sidebar doesn't take more processing power than the history sidebar.

    The other mentioned setting, "browser.tabs.groups.smart.enabled" is the only relevant switch. And it's disabled by default.
    So every user who complains about AI draining the battery enabled AI themselves beforehand.

    • by HiThere ( 15173 )

      I'm not sure you can trust all versions to have the same flags set...in fact I'm rather sure you can't.

      • by allo ( 1728082 )

        Yes, they are doing some experiments on users. Have a look on how to disable Shield Studies for example. But I think everything that downloads a model has a user interaction before. Still they should use a smaller model and I am not too convinced if one really needs to use AI or if users prefer just to group the tabs themselves.

  • It is a simple checkbox to disable it on Firefox. Edge has the same garbage feature implemented, with the same drawbacks and since some folks raved about it, Mozilla saw fit to copy it.
  • "Me, too! Me, too," shouted the fox in the hen house after coughing up a few inexplicable feathers. After my 12 years with Mozilla, all I can do is just roll my eyes.
  • Make the idiots that think AI is all that great see just what a clusterfuck it really is to the environment and our electric bills.
  • They took Chrome's dumb idea and put the groups on the same line as the tabs. Anyone who's actually tried this feature can see that there isn't enough room.

    Do they test these things before release? For the love of god put them on a separate line! Is it really that hard?

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