As of April 2026, Firefox Beta (Version 151.0) and recent builds have introduced several advanced capabilities:
: A dedicated "AI Controls" section in settings to manage features like the "Smart Window," which uses AI for article summaries, quick definitions, and product comparisons.
is the pre-release version of the Mozilla Firefox web browser, designed for users who want to test upcoming features before they are officially launched to the general public . It serves as a middle ground between the highly unstable Nightly builds (alpha) and the polished Standard release. Key Features (April 2026) Firefox Beta — Web Browser
: On desktop, the Beta version often acts as an upgrade to the standard version rather than a separate installation, which can alter your existing user profile. Release Notes - 148.0beta Firefox Beta
: A native multitasking tool that allows users to view two web pages side-by-side in a single window for easy comparison. As of April 2026, Firefox Beta (Version 151
: Those who need to test their websites against the next browser version to ensure compatibility. Safety & Risks
: Individuals willing to report bugs and crashes to help Mozilla finalize performance tweaks. Key Features (April 2026) : On desktop, the
: Users eager to try "unbaked" features about 4–6 weeks before the masses.
