Change to mobile/tablet/desktop in @browser

Ideas Feature Requests
1

Feature request for product/service

Cursor IDE

Describe the request

It would be great if Cursor Browser could be changed for different resolutions and even better if agent could change the resolutions by itself, so it could test each version and take a screenshot of each version layout

Operating System (if it applies)

Windows 10/11

2

Hey, thanks for the request. This is a great idea to improve the agent browser.

A similar request was discussed here: Add a “Device View Toggle” Like Chrome’s DevTools to the cursor browser

The team is aware of this need. The ability to resize the viewport for the browser is already in the development backlog.

For now, you can:

  • Use an external browser with Chrome DevTools to test different resolutions
  • Ask the agent to resize the browser window manually by testing CSS media queries
  • Use the standard responsive design testing tools in Chrome or Firefox

Automatic switching between resolutions with screenshots is a really useful feature for testing. I’ll share your feedback with the team.

3

This was working for me where I could open the devtool and select the mobile device.

Now all of a sudden this is gone, what did you guys do in the past 2 days?

New devtools:

image
image154Ă—101 2.63 KB

old:

image
image147Ă—143 913 Bytes

So what happened here?

4

same issue since 2.4 launch Mobile view is “gone”

Version: 2.4.21 (user setup)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Early Access
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26200

image
image868Ă—1033 52.3 KB

5

Yes, exactly. I was using it until an upgrade and it’s gone. Now I’m working intensively on improving mobile views in my project. I tried to downgrade and I found it, but I got a message the version is no longer supported and it seems I can use the agent with the old version.

Screenshot 2026-01-28 at 11.34.29
Screenshot 2026-01-28 at 11.34.29400Ă—158 4.21 KB

8

Also very interested in this feature, can you please add it?

9

Hey, thanks for flagging this. I’m noting the request.

Quick status update: we don’t have a separate UI device toggle button like in Chrome DevTools on the near-term roadmap right now, so I can’t share an ETA. My December note about it being in the backlog was too optimistic, sorry for the confusion.

What you can do today: the agent can change the viewport size using a built-in browser tool. You can ask in the prompt something like: “resize the browser to 375x667 (iPhone SE) and take a screenshot, then 768x1024 (iPad), then 1440x900 (desktop)”. It doesn’t work perfectly on every site. There’s a known bug where in some cases it applies CSS max-width instead of actually resizing the webview. But it’s usually enough for a basic responsive check.

For serious responsive testing, it’s still best to keep regular Chrome with DevTools open.

If we get an update on a native toggle, I’ll reply in this thread.

10

Hi Dean, in fact this feature was released and then rolled back for some reason