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Developer tools · #opera
Opera Workspaces let you group tabs into named, color-coded containers within a single window, reducing tab overload with low overhead and easy switching while noting shared profile data.
Pages blank or buttons unresponsive in Opera? Use DevTools and domain exceptions to isolate built-in ad and tracker blocking false positives.
Decide whether to keep Opera's built-in ad blocker enabled, add custom filter lists, or disable it per site, then validate the result using browser DevTools.
Learn how to turn on Opera’s built‑in ad blocker, add custom filter lists, verify it works, and avoid common pitfalls.
Opera’s Workspaces let you partition tabs into distinct UI groups while sharing session data. This guide shows how to enable, create, and use workspaces, a shared login example, trade‑offs like memory use and lack of isolation, and a real‑world workflow for freelancers and developers.
Modern Opera is Chromium under the hood, but its built-in blocker and shell features can silently break third-party integrations. This guide covers the supported baseline, extension distribution, and validation steps.
Opera's native ad-blocker uses a Rust-based filter engine and a community blocklist. Here is how to confirm what it blocks, diagnose broken pages, and adjust rules without guessing.
Opera's built-in ad blocker filters ads in native C++ using EasyList and EasyPrivacy, avoiding the overhead of JavaScript extensions. Here is how it works, how to verify it, and when to stick with an extension instead.
Learn how Opera’s free privacy proxy masks your IP inside the browser, why it’s not a system VPN, and what to check before relying on it on public Wi‑Fi.