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Firefox's beta feature "Smart Window" shared browsing and search history to AI models without prompting
(www.omgubuntu.co.uk)
this post was submitted on 13 Mar 2026
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Much like Adobe‘s Acrobat which I also have to use for work. At least from what I can tell when it suddenly summarizes a PDF. There‘s no way in hell that happens locally. But the fact that it seemingly automatically processes potentially sensitive data from customers didn‘t even do as little as raising eyebrows when I brought it up.
No way in hell? My understanding is that an NPU could perform that type of processing locally. I welcome info & correction!
(I know other types of local ai processors could too, but there’s little chance Acrobat would be geared to look for them - even GPUs - unlike NPUs.)
Now if we switch to talking about policy instead of capability, I don’t think Adobe would miss a chance to be evil. So yeah they’re probably stealing all the data they possibly can.
few computers have an embedded NPU
I use Firefox as a PDF reader at work. it's better than Adobe Reader or Chrome, and it's good enough, so I haven't bothered finding something else.
I deal with secure information sometimes, in PDF form. I haven't even considered that this information might not remain local.
I use KDE's PDF reader Okular
Sumatra is the notepad++ of pdf readers (minus the state sponsored hackers https://notepad-plus-plus.org/news/hijacked-incident-info-update/)
https://github.com/sumatrapdfreader/sumatrapdf
Looks interesting! I can't see it in their docs, can it display the font type and size of a selected text? I've been using PDF-XChange Viewer mostly for that feature. (Lol I just noticed it has been discontinued since 2018 😬)
I've been using it for ages whenever I need to open PDFs on Windows. Though nowadays browsers handle them too. And I avoid Windows.
It is genuinely excellent software.
If your company has an enterprise/privacy agreement with Adobe, it might be considered addressed, similar to the millions of companies using Microsoft 365 and Sharepoint.
If, OTOH, it's a "free" feature of Adobe, it could be eating your company's data without constraints.
If the latter, let us know your company's name so that we can avoid it.