[GH-ISSUE #233] feat: Add option to configure the Chrome CDP window size #145

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opened 2026-10-18 14:03:21 +00:00 by bsakaguchi · 1 comment

bsakaguchi commented

2026-10-18 14:03:21 +00:00

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Originally created by @JKGeovision on GitHub (Aug 19, 2026).
Original GitHub issue: https://github.com/open-webui/computer/issues/233

Hello,

On screenless devices (e.g. Docker containers), the Chrome CDP instance always starts at 800 x 600 px, and there is currently no way to change that.

It would be great to have a setting in the settings to specify the window size with which Open Computer opens the Chrome CDP instance.

At 800 x 600, many websites classify the browser as a mobile device and only show a reduced feature set, which makes web apps that are not intended for mobile use hard to work with.

Example: Open Computer running in Docker, using a desktop-oriented web app that needs a larger viewport to expose its full feature set.

Screenshot of the current default attached:

Thanks for considering this!

Best regards,
Joshua Krimmer

Originally created by @JKGeovision on GitHub (Aug 19, 2026). Original GitHub issue: https://github.com/open-webui/computer/issues/233 Hello, On screenless devices (e.g. Docker containers), the Chrome CDP instance always starts at 800 x 600 px, and there is currently no way to change that. It would be great to have a setting in the settings to specify the window size with which Open Computer opens the Chrome CDP instance. At 800 x 600, many websites classify the browser as a mobile device and only show a reduced feature set, which makes web apps that are not intended for mobile use hard to work with. Example: Open Computer running in Docker, using a desktop-oriented web app that needs a larger viewport to expose its full feature set. Screenshot of the current default attached: <img width="2332" height="409" alt="Image" src="https://github.com/user-attachments/assets/0892e862-05fe-4324-b9d0-f858e0b796df" /> Thanks for considering this! Best regards, Joshua Krimmer

bsakaguchi commented

2026-10-18 14:03:22 +00:00

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@owui-terminator[bot] commented on GitHub (Aug 19, 2026):

🔍 Related Issues Found

I found some existing issues that might be related. Please check if any of these are duplicates or contain helpful solutions:

🟣 #138 bug: Browser tool does not support custom viewport size for screenshots
This issue reports the same underlying limitation: the browser/CDP environment uses a fixed default viewport size with no configuration option, and the requested solution is to expose a setting for changing it. Although #138 focuses on screenshots, it is directly about the lack of custom viewport sizing in the browser tool.
by JKGeovision

💡 If your issue is a duplicate, please close it and add any additional details to the existing issue instead.

This comment was generated automatically. React with 👍 if helpful, 👎 if not.

@owui-terminator[bot] commented on GitHub (Aug 19, 2026):  🔍 **Related Issues Found** I found some existing issues that might be related. Please check if any of these are duplicates or contain helpful solutions: 1. 🟣 [#138](https://github.com/open-webui/computer/issues/138) **bug: Browser tool does not support custom viewport size for screenshots** *This issue reports the same underlying limitation: the browser/CDP environment uses a fixed default viewport size with no configuration option, and the requested solution is to expose a setting for changing it. Although #138 focuses on screenshots, it is directly about the lack of custom viewport sizing in the browser tool.* *by JKGeovision* --- 💡 If your issue is a duplicate, please close it and add any additional details to the existing issue instead. *This comment was generated automatically.* React with 👍 if helpful, 👎 if not.

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