: Beyond basic themes, users can access advanced settings via about:config to fine-tune browser behavior.
: This standout feature allows users to separate their browsing (e.g., Personal, Work, Shopping) into different "containers" so that cookies from one do not leak into another.
As of April 2026, remains a major independent pillar of the open web, known for its deep focus on user privacy and high levels of customization. While most modern browsers—including Chrome, Edge, and Brave—rely on Google’s Chromium engine, Firefox uses its own Gecko engine , making it one of the few truly independent alternatives. Key Features and Strengths