Firefox
Firefox is Mozilla’s desktop web browser for macOS, used for everyday browsing, web apps, syncing, and privacy-focused browsing controls.
What is Firefox?
Firefox is a desktop web browser published by Mozilla Corporation and available for macOS through Mozilla’s official download pages. It is used for general web browsing, web apps, online accounts, media playback, and development or testing workflows. Firefox includes features such as tabbed browsing, support for extensions, bookmark and history management, private browsing, password handling, and account sync across devices. On Mac, users typically encounter it as an application in /Applications, and it can integrate with the system as the default browser for opening links. Mozilla also provides update and support documentation for Mac installations, including version compatibility guidance for older macOS releases. The bundle ID org.mozilla.firefox is commonly associated with the standard Firefox app on macOS.
Key features
- Browse websites and web apps with tabbed windows and multiple profiles or sessions.
- Sync bookmarks, history, tabs, and saved credentials across devices with a Mozilla account.
- Use private browsing and tracking protection controls to reduce common web tracking.
- Install extensions and themes to customize browsing behavior and appearance.
- Manage saved passwords, bookmarks, downloads, and browsing history from built-in tools.
- Set it as the default browser on macOS for opening links from other apps.
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Safe
Firefox from Mozilla’s official site is generally safe and widely used. As a browser, it can store browsing history, cookies, downloads, saved passwords, and synced account data, so the main privacy risk comes from how it is configured and what data the user chooses to save or sync.
Recommendation: Keep if you use Firefox or want an alternative browser on your Mac. Remove it only if you do not use it and have another browser available for web links and web-based tasks.
Common paths
/Applications/Firefox.app
Cache paths
~/Library/Caches/Firefox~/Library/Caches/Mozilla/updates/Applications/Firefox
Support paths
~/Library/Application Support/Firefox
Preference paths
~/Library/Preferences/org.mozilla.firefox.plist
Share your experience
Be the first to share your experience.