How uBlock Origin, Privacy Badger, and LocalCDN Each Fight Web Tracking Differently

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A developer essay published on DEV Community breaks down three widely recommended browser privacy extensions — uBlock Origin, Privacy Badger, and LocalCDN — explaining that each tackles a distinct aspect of online tracking. When a webpage loads, resources such as fonts, ads, and analytics scripts are often fetched from dozens of third-party servers, each receiving the user's IP address and browsing context. Ad blockers like uBlock Origin rely on curated filter lists to block known trackers and ads before requests leave the browser, while Privacy Badger, built by the Electronic Frontier Foundation, learns to block trackers by observing suspicious cross-site behavior rather than consulting a fixed list. LocalCDN addresses a separate problem by serving common script libraries locally, preventing requests to external content delivery networks that could profile users. The article argues that understanding what each tool does — and does not do — helps users make more deliberate privacy choices rather than simply collecting extensions.

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ProgrammingDEV Community ·

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