ChromeDriver not honoring the --window-size parameter.

Narendra Reddy

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May 28, 2025, 8:47:21 AMMay 28

to ChromeDriver Users

Hi Team,

We are using python selenium BDD framework. We recently upgraded chrome driver and chome browser to 137.0.7151.55, from then we see chrome driver is not honoring the --window-size parameter.

We have tried below code:

driver.maximize_window()

options.add_argument('--window-size=1920x1080');

options.add_argument('--start-maximized')

Though we added above lines of code under options class we see window is opening with tablet size. Any one also seeing the issue, if yes please suggest us the solution for this.

Regards,

Narendra

Benyamin Jameeimoghadam

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Jun 11, 2025, 11:24:21 AMJun 11

to ChromeDriver Users

Hello Narendra,

I am also facing the same issue. As soon as I run my tests in headless mode the window_size is set to width 800 and height 600.

Regards,

Benyamin

Naman Vijayvargiya

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Jun 12, 2025, 2:13:21 AMJun 12

to ChromeDriver Users

Hi All,

Has anyone found any workaround for this ?

Narendra Reddy

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Jun 12, 2025, 2:44:27 AMJun 12

to Naman Vijayvargiya, ChromeDriver Users

Hello Everyone,

By adding "driver.set_window_size(1920, 1080)" resolved my issue.

Regards,

Narendra Kudumula

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Naman Vijayvargiya

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Jun 12, 2025, 2:55:29 AMJun 12

to ChromeDriver Users

Thanks for the reply, but strangely this does not work for me.
I am using Robot framework with selenium which has `Set Window Size` function which I believe does the same job and still my windows size is not correct.

Thanks

Naman

Benyamin Jameeimoghadam

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Jun 12, 2025, 4:22:38 AMJun 12

to ChromeDriver Users

I am not sure if it is just Chrome issue as I encounter the same problem when I am running tests in headless mode and browser size is by default set to (1313x738).

I tried to find a work around by just setting it to driver.set_window_size(1920, 1080) but some elements can be undetectable due to size issue.

Regards,

Ben

Naman Vijayvargiya

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Jun 12, 2025, 7:02:30 AMJun 12

to ChromeDriver Users

Hi Ben

I have only recently started seeing this issue, prior to this the browser window was getting maximized so that led me to believe this could be a chromedriver update issue.

Thanks

Mr. Yoso

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Jun 13, 2025, 5:08:37 AMJun 13

to ChromeDriver Users

Hello,

Good day.

I'm experiencing the same. I'm using an Ubuntu as runner for my robotframework selenium tests.

Aditi Ks

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Jun 19, 2025, 10:52:12 AMJun 19

to ChromeDriver Users

I have tried the resolution given above it did not work , any other solutions for this?

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