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Developer tools · #firefox
Learn how to enable, test, and troubleshoot Firefox DNS‑over‑HTTPS, plus when to disable it for split‑horizon networks.
Learn how Firefox’s WebAssembly SIMD extension (available from version 94) lets you accelerate numeric workloads with minimal code changes, plus a hands‑on example and caveats.
Learn how to switch Firefox’s Enhanced Tracking Protection to Strict mode, verify it’s working, and restore access to sites that break under the stricter policy.
Firefox's Enhanced Tracking Protection blocks known trackers by default, but aggressive blocking can break websites. The real challenge is maintaining privacy without sacrificing functionality.
A decision guide for Firefox's Electrolysis (e10s) multi-process architecture: compare default vs. legacy mode, understand memory/stability trade-offs, validate current state, and tune process counts instead of disabling entirely.
Firefox's move from legacy XUL add-ons to the sandboxed WebExtensions API traded low-level power for security and cross-browser portability. Here's the reasoning and a minimal migration example.
Firefox isolates tabs into a pool of content processes. Here's how to tune the process limit for your RAM budget and verify the result with about:processes and about:support.
Firefox Multi‑Account Containers give each tab group its own cookie jar and storage, letting you run separate work and personal sessions of the same site in one window. Here’s how the isolation works, where it breaks, and how to verify it.
Firefox’s thread‑enabled WebAssembly can unlock parallelism for heavy JavaScript workloads. Learn how to enable, compile, and benchmark a multi‑core Wasm module, and understand the trade‑offs and verification steps.