The original 3310 runs on a proprietary Nokia operating system that predates the modern app economy. It has:
Runs on YunOS (Android-based), allowing for better browsing and sometimes supports a "Facebook Lite" app. nokia 3310 facebook app download
Disclaimer: Some third-party download sites for Java apps ( .jar or .jad files) may be unsafe. Stick to the official Opera Mobile Store pre-installed on your device. The original 3310 runs on a proprietary Nokia
Method 2: Installing Facebook via Opera Mobile Store (2017 3G/4G) nokia 3310 facebook app download