Firefox Fast & Private Browser

What Firefox does

Firefox Fast & Private Browser is a mobile web browser for Android, built by Mozilla for people who want regular web access with more control over privacy and browsing tools. It handles search, websites, tabs, bookmarks and saved passwords, while giving users more choice over how the browser looks and behaves.

Privacy and browsing tools

Enhanced Tracking Protection helps block cross-site cookies, social media trackers and crypto-miners by default. Firefox also supports private browsing and can protect private tabs with a fingerprint or PIN. These features make it a practical fit for users who share devices, dislike intrusive tracking or want clearer separation between ordinary and private sessions.

The mobile version supports selected add-ons, including tools for blocking ads and improving privacy. The search bar can be moved to the bottom of the screen for easier one-handed use, and tabs can be viewed as thumbnails or a list. Dark mode and picture-in-picture video support add useful options for longer browsing sessions.

Sync and everyday use

Signing in with a Mozilla account lets Firefox sync bookmarks, saved passwords and open tabs between supported devices. That is useful for anyone who moves between a phone and a desktop, although users who prefer not to create an account can keep their browsing separate. The browser suits both everyday web use and people who want more say over extensions, tab handling and privacy settings.

At a glance

• Developer: Mozilla
• Category: Communication
• Rating: 4.58/5 from 6,241,013 reviews
• Installs: 100,000,000+