| Problem | Solution | |---------|----------| | “Transfer failed” on large files | Check disk space – the extension writes temporary encrypted chunks to your system temp folder. Also ensure Firefox is up to date. | | Extension not intercepting MEGA links | Disable other add-ons that might interfere (e.g., redirect blockers, download managers). Go to extension settings → ensure “Handle MEGA links” is checked. | | High CPU usage during download | Decrypting large files is CPU-intensive. This is normal. Close other tabs if needed. | | Cannot log in via extension | Clear site data for mega.nz (Firefox settings → Privacy & Security → Cookies and Site Data). Reinstall the extension. |
: Another extension running in the background of your Firefox instance. Installation & Setup Visit the Firefox Add-ons (AMO) store . Click Add to Firefox . mega nz extension firefox