1. Too Many Open Tabs
2. Heavy Extensions/Add-ons
3. Tracking Protection or DNS Over HTTPS
4. Corrupted Cache or History
5. Firefox Updates Running in Background
6. Antivirus or Firewall Conflict
7. Network Configuration (Proxy/VPN)
This would take more information to answer. This app doesn't directly slow down an Internet connection. If you're using the app to upload/download, that might make other connections from your computer slower.
Firefox Browser is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy. Available now on Windows, Mac, Linux, Android and iOS.
With over 2.5 million reviews, we can provide the specific details that help you make an informed software buying decision for your business. Finding the right product is important, let us help.