---
updatedAt: 2025-06-09T23:45:57.000Z
agentTools:
  projectIndex: https://support.speedcurve.com/llms.txt
---

# Custom browsers

Add your own custom browser profile.

In **Settings > Edit Browsers** you can also add your own Custom Browser profile to fully control all settings of a test profile or emulate any device you like. With a custom browser you have additional options for:

* User-agent string
* Viewport width
* Viewport height
* Device pixel ratio
* Download bandwidth
* Upload bandwidth
* Latency
* Packet loss
* CPU throttle