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  "path": "/post/47085314",
  "publishedAt": "2026-03-12T13:45:09.000Z",
  "site": "https://programming.dev",
  "tags": [
    "Privacy",
    "XLE",
    "10 comments",
    "reading a review",
    "downloaded",
    "advertising",
    "default"
  ],
  "textContent": "submitted by XLE to privacy\n55 points | 10 comments\n\nI was reading a review of Firefox’s experimental Smart Window feature, and this stood out as a potential huge issue:\n\n> Smart Window uses ‘memories’, things Mozilla says “…it learns from your activity” to inform its responses.\n>\n> You can delete memories individually, and you can set any given chat session to not use/store them.\n>\n> Fine so far.\n>\n> The problem? My memory list isn’t populated with things Smart Window learned since I enabled it. Oh no.\n>\n> It has activity going back months. We’re talking searches and website interactions from long before I enabled this. features.\n>\n> Firefox just handed that history to the AI models to plough from, without telling me upfront.\n>\n> I found this the creepiest aspect of Smart Window.\n>\n> Mozilla says this was a flub; it will refine the onboarding around Smart Window to limit memory formation to post-opt-in activity only. That’s obviously the right fix.\n>\n> Because sharing a user’s prior browsing history with third-party AI models, silently, on feature activation, without any headset? Yeah, a bit icky – but that’s the price of testing features that are finished, I guess.\n\nThis news leaves me with more questions than answers:\n\n  * Was this summarized on enabling this window, or earlier?\n  * Did it use an existing model, or re-use one that someone may have already downloaded for a different feature?\n  * Is this activity going anywhere else, like Mozilla’s recent “privacy-preserving” advertising?\n  * When this releases, what will the default be?\n\n",
  "title": "Beware testing Firefox \"Smart Window\": Mozilla sends a summary of earlier activity to 3rd parties"
}