How do I set browser width and height in Selenium WebDriver

Question

I m using Selenium WebDriver for Python  I want instantiate the browser with a specific width and height  So far the closest I can get is   driver   webdriver Firefox   driver set window size 1080 800    Which works  but sets the browser size after it is created  and I want it set at instantiation  I m guessing there is an approach along the lines of   profile   webdriver FirefoxProfile    profile set preference foo  1080  driver   webdriver Firefox profile    But I don t know what foo would be  and I can t figure out where the docs are   Q1  is there a way to set width   height at instantiation   Q2  Where are the reference docs listing all keys usable by profile set preference

User · Answer

Try something like this   IWebDriver  driver   new FirefoxDriver     driver Manage   Window Position   new Point 0  0    driver Manage   Window Size   new Size 1024  768     Not sure if it ll resize after being launched though  so maybe it s not what you want

User · Answer

Here is how I do it in Python with Selenium 2 48 0   from selenium webdriver import Firefox driver   Firefox   driver set window position 0  0  driver set window size 1024  768

User · Answer

profile   webdriver FirefoxProfile   profile set preference  browser window width  0  profile set preference  browser window height  0  profile update preferences     write this code into setup part of  your test code  before the  webdriver Firefox   line

User · Answer

For me  the only thing that worked in Java 7 on OS X 10 9 was this      driver   new RemoteWebDriver new URL grid   capability   driver manage   window   setPosition new Point 0 0    driver manage   window   setSize new Dimension 1024 768      Where 1024 is the width  and 768 is the height

User · Answer

If you are using chrome   chrome options   Options    chrome options add argument  --start-maximized     chrome options add argument  --window-position 1367 0     if mobile emulation        chrome options add experimental option  mobileEmulation   mobile emulation     self driver   webdriver Chrome   path to chromedriver                                      chrome options   chrome options    This will result in the browser starting up on the second monitor without any annoying flicker or movements across the screen

User · Answer

Here is firefox profile default prefs from python selenium 2 31 0 firefox profile py  and type  about config  in firefox address bar to see all prefs  reference to the entries in about config  http   kb mozillazine org About config entries  DEFAULT PREFERENCES          app update auto    false        app update enabled    false        browser download manager showWhenStarting    false        browser EULA override    true        browser EULA 3 accepted    true        browser link open external    2        browser link open newwindow    2        browser offline    false        browser safebrowsing enabled    false        browser search update    false        extensions blocklist enabled    false        browser sessionstore resume from crash    false        browser shell checkDefaultBrowser    false        browser tabs warnOnClose    false        browser tabs warnOnOpen    false        browser startup page    0        browser safebrowsing malware enabled    false        startup homepage welcome url      about blank          devtools errorconsole enabled    true        dom disable open during load    false        extensions autoDisableScopes    10       extensions logging enabled    true        extensions update enabled    false        extensions update notifyUser    false        network manage-offline-status    false        network http max-connections-per-server    10        network http phishy-userpass-length    255        offline-apps allow by default    true        prompts tab modal enabled    false        security fileuri origin policy    3        security fileuri strict origin policy    false        security warn entering secure    false        security warn entering secure show once    false        security warn entering weak    false        security warn entering weak show once    false        security warn leaving secure    false        security warn leaving secure show once    false        security warn submit insecure    false        security warn viewing mixed    false        security warn viewing mixed show once    false        signon rememberSignons    false        toolkit networkmanager disable    true        toolkit telemetry enabled    false        toolkit telemetry prompted    2        toolkit telemetry rejected    true        javascript options showInConsole    true        browser dom window dump enabled    true        webdriver accept untrusted certs    true        webdriver enable native events    true        webdriver assume untrusted issuer    true        dom max script run time    30

User · Answer

This works both with headless and non-headless  and will start the window with the specified size instead of setting it after   from selenium webdriver import Firefox  FirefoxOptions  opts   FirefoxOptions   opts add argument  --width 2560   opts add argument  --height 1440    driver   Firefox options opts

User · Answer

It s easy  Here is the full code   from selenium import webdriver driver   webdriver Chrome   driver get  Your URL   driver set window size 480  320       Make sure chrome driver is in your system path

[python] How do I set browser width and height in Selenium WebDriver?

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