No. Mozilla’s supporting tools are web apps or native apps.
If you need a Java-compatible browser for development or legacy systems, consider , Lobo Browser , or write your own WebKit wrapper. But for Firefox — there is no official JAR version .
Your system thinks Firefox is the default app to open Java files. Right-click the JAR file and select download firefox jar
: Navigate to the website containing the .jar file link.
You cannot. Smart TVs use proprietary OSes (Tizen, WebOS, Android TV). Use the built-in browser or side-load Firefox for Android TV (APK, not JAR). But for Firefox — there is no official JAR version
: If you only need the contents, you can treat it like a ZIP file and extract it using tools like 7-Zip . Troubleshooting Common Issues
In the past, before the Google Play Store was the default hub for all Android apps, users often downloaded .apk files to install software on their phones. Some users mistakenly conflate APKs with JARs, or they might be looking for a specific package format for Android development. Firefox for Android is distributed as an APK, not a JAR. You cannot
Mozilla Firefox is written primarily in (the Gecko rendering engine). It is deeply integrated with your operating system’s native libraries (graphics, memory management, networking).
Searching for "download Firefox JAR" can be dangerous if you do not know what you are looking for. Here is why you should be extremely cautious: