Brave now lets you inject custom JavaScript to tweak websites

Brave Browser is adding a desktop v1.75 feature called `custom scriptlets` that allows advanced users to inject their own JavaScript for extensive privacy, security, usability, and performance customizations (e.g., blocking trackers, altering site UI, stopping autoplay, randomizing fingerprinting APIs). The article explains how to enable the feature via Shields > Content filtering by turning on Developer mode and adding a scriptlet, notes compatibility with adblock-style rule syntax and filter list subscriptions, and emphasizes the risks of using untrusted code due to potential privacy and stability issues.