Mozilla’s implementation of Streams API and Web Workers is more memory-efficient than Google Chrome’s. In stress tests (uploading 50GB folders), the Firefox extension consumed approximately 30% less RAM than its Chrome counterpart. Furthermore, Firefox’s stricter sandboxing of extensions means the MEGA process is isolated from your other tabs more effectively than in Chrome.
: While it speeds up transfers, users should note that handling massive files locally can still be CPU-intensive, though the extension handles this much more gracefully than the "naked" website. Final Verdict mega nz extension firefox
If you are a die-hard Firefox user, the Mega extension is actually better optimized for you than for Chromium users. Mozilla’s implementation of Streams API and Web Workers