Has anyone made a plugin that forces your browser to resize slightly to help avoid fingerprinting? I feel like this is an annoyance I could tolerate, even if over the course of a day or two it causes me to resize it manually to something larger.
Edit: I think I misunderstood you, you’re looking for something that adds changing noise to the viewport size. Letterboxing isn’t that, but it is another, arguably better, approach to reducing the same fingerprinting vector.
I think Privacy Badger may also do it.
There are also add-ons that perform the same basic function with some added customisability [0].
[0] https://addons.mozilla.org/en-US/firefox/addon/canvasblocker...