Websites can now fingerprint a device when multiple browser instances are used
Random idea: Couldn&#x27;t browsers have two modes of browsing, one lightweight one where only the most basic of JS features are enabled by default (this is something that 99% of websites actually need) and the full version where everything is enabled. The lightweight one is the default state and the users can manually switch to full version. Or even better use logistic regression or a neural network to decide when a website genuinely needs advanced features and when it&#x27;s just to track you.
As a bonus the lightweight mode would also probably render much faster?
How realistic is this? What would be the downside?