How to Close Download Bar in Chrome Using Selenium
If you are using selenium for web automation, you might have encountered a problem with the download bar in Chrome. The download bar is a feature that shows the progress and status of your downloads at the bottom of the browser window. However, it can also block some elements that you want to interact with using selenium, such as buttons or links. In this article, we will show you three possible solutions to close or disable the download bar in Chrome using selenium.
Introduction
Selenium is a popular tool for web automation that allows you to simulate user actions on web pages using various programming languages. It can be used for testing, scraping, or performing tasks that require human interaction. Selenium works by communicating with a web driver, such as ChromeDriver, that controls the browser.
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The download bar in Chrome is a feature that shows the progress and status of your downloads at the bottom of the browser window. It also allows you to pause, resume, cancel, or open your downloads. However, it can also interfere with your selenium tests by blocking some elements that you want to click or interact with. For example, if you want to click on a button that is located under the download bar, selenium might not be able to find or access it.
There are three possible solutions to close or disable the download bar in Chrome using selenium:
Use Chrome Options to disable Download UI
Use Actions class to move to an element view
Use JavaScript to open a new window for download test
We will explain each solution in detail and compare their pros and cons.
Solution 1: Use Chrome Options to Disable Download UI
One way to disable the download bar in Chrome using selenium is to use the ChromeOptions class. This class allows you to customize various settings and preferences for ChromeDriver. You can use it to add the argument "disable-features=DownloadUI" to the ChromeOptions object, which will disable the download bar feature.
How to use ChromeOptions class to add the argument "disable-features=DownloadUI"
To use this solution, you need to import the ChromeOptions class from selenium.webdriver.chrome.options module. Then, you need to create an instance of ChromeOptions and add the argument "disable-features=DownloadUI" using the add_argument method. Finally, you need to pass the ChromeOptions object as a parameter when creating an instance of ChromeDriver. Here is an example code in Python:
from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_argument("disable-features=DownloadUI") driver = webdriver.Chrome(options=options) driver.get(" # do your test here driver.quit()
Pros and cons of this solution Pros and cons of this solution
The main advantage of this solution is that it does not require any additional arguments or settings for ChromeDriver. It also allows you to access and verify the downloaded files, since the download bar is not disabled. This solution can also work for any element that is hidden by the download bar, as long as you can locate it using selenium.
The main disadvantage of this solution is that it is more complex and less reliable than the first solution. You need to write more code to perform the mouse movement action and handle any exceptions or errors. This solution also depends on the position and size of the download bar and the element, which might vary depending on the browser window or resolution. If the element is too close to the download bar or too far from the view, this solution might not work.
Solution 3: Use JavaScript to Open a New Window for Download Test
A third way to close the download bar in Chrome using selenium is to use JavaScript to open a new window for the download test. This way, you can avoid the download bar in the original window and run your test in a separate window. You can use the execute_script method of selenium to run JavaScript code in the browser.
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How to use JavaScript to open a new window, switch to it, run download test, and close it
To use this solution, you need to use the execute_script method of selenium to run JavaScript code in the browser. You can use the window.open method of JavaScript to open a new window with a given URL. Then, you need to use the switch_to.window method of selenium to switch to the new window by its handle. Next, you need to run your download test in the new window using selenium. Finally, you need to close the new window using the driver.close method of selenium and switch back to the original window using the switch_to.window method again. Here is an example code in Python:
from selenium import webdriver driver = webdriver.Chrome() driver.get(" # do your test here # open a new window with a download URL using JavaScript download_url = " driver.execute_script(f"window.open('download_url')") # get the handles of the original and new windows original_window = driver.current_window_handle new_window = driver.window_handles[1] # switch to the new window driver.switch_to.window(new_window) # run your download test in the new window # do your test here # close the new window driver.close() # switch back to the original window driver.switch_to.window(original_window) # now the download bar should be closed in the original window Pros and cons of this solution
The main advantage of this solution is that it is flexible and independent of the download bar feature. It also allows you to access and verify the downloaded files, since the download test is run in a separate window. This solution can also work for any download URL, as long as you can pass it to the JavaScript code.
The main disadvantage of this solution is that it is more complicated and less efficient than the other solutions. You need to write more code to open, switch, and close the new window using JavaScript and selenium. This solution also requires more resources and time, since it involves opening a new window for each download test.
Comparison Table of the Solutions
To help you choose the best solution for your needs, we have created a comparison table of the three solutions based on some criteria such as simplicity, reliability, and compatibility. Here is the table:
Solution
Simplicity
Reliability
Compatibility
Access to Downloaded Files
Use Chrome Options to Disable Download UI
High
Low
Low
No
Use Actions Class to Move to an Element View
Medium
Medium
Medium
Yes
Use JavaScript to Open a New Window for Download Test
Low
High
High
Yes
Conclusion
In this article, we have shown you three possible solutions to close or disable the download bar in Chrome using selenium. Each solution has its pros and cons, and you should choose the one that suits your needs and preferences. Here are some recommendations:
If you want a simple and easy solution that works for any download test, you can use Chrome Options to disable Download UI. However, this solution might not be compatible with some versions of Chrome or ChromeDriver, and it does not allow you to access or verify the downloaded files.
If you want a more reliable and flexible solution that allows you to access and verify the downloaded files, you can use JavaScript to open a new window for download test. However, this solution is more complicated and less efficient than the other solutions, and it requires more resources and time.
If you want a balanced solution that combines simplicity and reliability, you can use Actions class to move to an element view. However, this solution depends on the position and size of the download bar and the element, which might vary depending on the browser window or resolution.
We hope this article has helped you solve your problem with the download bar in Chrome using selenium. If you have any questions or feedback, please let us know in the comments below.
FAQs
Here are some frequently asked questions about selenium close download bar with brief answers:
How do I close the download bar in Firefox using selenium?
You can use Firefox Options to set the preference "browser.download.panel.shown" to False. This will prevent the download panel from showing up in Firefox. Here is an example code in Python:
from selenium import webdriver from selenium.webdriver.firefox.options import Options options = Options() options.set_preference("browser.download.panel.shown", False) driver = webdriver.Firefox(options=options) driver.get(" # do your test here driver.quit()
How do I close the download bar in Edge using selenium?
You can use Edge Options to add the argument "disable-features=DownloadUI" to the EdgeOptions object, which will disable the download bar feature. This is similar to the first solution for Chrome. Here is an example code in Python:
from selenium import webdriver from msedge.selenium_tools import EdgeOptions options = EdgeOptions() options.add_argument("disable-features=DownloadUI") driver = webdriver.Edge(options=options) driver.get(" # do your test here driver.quit()
How do I verify that a file has been downloaded successfully using selenium?
You can use the os module of Python to check if a file exists in a given directory. You need to specify the path of the directory where your downloads are saved, and the name of the file that you expect to be downloaded. Here is an example code in Python:
import os download_dir = "C:\\Users\\username\\Downloads" file_name = "some_file.pdf" # check if the file exists in the download directory if os.path.exists(os.path.join(download_dir, file_name)): print("File downloaded successfully") else: print("File not downloaded")
How do I change the default download directory for Chrome using selenium?
You can use Chrome Options to set the preference "download.default_directory" to a custom path. This will change the default download directory for Chrome. Here is an example code in Python:
from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_experimental_option("prefs", "download.default_directory": "C:\\Users\\username\\CustomDownloadDir" ) driver = webdriver.Chrome(options=options) driver.get(" # do your test here driver.quit()
How do I handle multiple downloads in Chrome using selenium?
You can use Chrome Options to set the preference "download.prompt_for_download" to False. This will prevent Chrome from asking you to confirm each download. You can also set the preference "safebrowsing.enabled" to False. This will disable the safe browsing feature that might block some downloads. Here is an example code in Python:
from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_experimental_option("prefs", "download.prompt_for_download": False, "safebrowsing.enabled": False ) driver = webdriver.Chrome(options=options) driver.get(" # do your test here driver.quit()
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