Since you can't use the Google Play Store, you'll need to install the APK manually. Here's a safe guide:
This does mean Firefox cannot run on your device. It simply means the latest version of Firefox is incompatible. Fortunately, Mozilla maintains a long history of releases, including final stable builds that support Android 4.4.2. Mozilla Firefox Apk For Android 4.4 2
While running Firefox 68 on Android 4.4.2 is vastly safer than using the obsolete stock browser, users must remain cautious. Because Firefox 68 no longer receives active security patches from Mozilla, it contains known vulnerabilities that could potentially be exploited by malicious websites. Best Practices for Legacy Browsing: Since you can't use the Google Play Store,
To run Firefox on an Android 4.4.2 device, you must manually download (sideload) the APK file for the compatible version: Official Mozilla Archive : You can find the secure, original APKs on the Mozilla FTP Server Third-Party Alternatives : Sites like also host this version. System Requirements Architecture : You likely need the build depending on your hardware. Storage/RAM Fortunately, Mozilla maintains a long history of releases,