Firefox Beta Вђ” Web Browser -

: 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.

: 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 Firefox Beta — Web Browser

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) : A dedicated "AI Controls" section in settings

: Individuals willing to report bugs and crashes to help Mozilla finalize performance tweaks. It serves as a middle ground between the

As of April 2026, Firefox Beta (Version 151.0) and recent builds have introduced several advanced capabilities: