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Designing Firefox for the future
(blog.mozilla.org)
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this post was submitted on 21 May 2026
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You can lie to the website and say your resolution is 1024x768. But what happens when the JavaScript fingerprinting checks the actual width of the view port? Your view port is most likely larger than your stated screen size.
Sounds like a limitation of the spoofing technology, and shameless spying on the websites part. I'm not a tech expert but is there nothing that you can lie to the websites about and they can't check or verify it? For example the list of fonts?
That one in particular you potentially could, though it does raise the question of what would happen if you report you have a don’t you don’t, and the site tries to push content using that font.
I had an add-on at one point (or possibly a uBlock origin setting?) to block all remote fonts and just use a local one. Might work fine if it's integrated with something like that.