from selenium import webdriver;
browser= webdriver.Firefox();
browser.get('http://www.seleniumhq.org');
When I try to run this code, it gives me an error message:
Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line.
Any thoughts-highly appreciated!
This error message...
Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line.
...implies that the GeckoDriver was unable to find the Firefox binary at the default location. Additionally you haven't passed the moz:firefoxOptions.binary capability.
Possibly within your system firefox is installed in a custom location and these cases you need to pass the absolute path of the Firefox binary through the moz:firefoxOptions.binary capability as follows:
from selenium import webdriver
from selenium.webdriver.firefox.options import Options
options = Options()
options.binary_location = r'C:\Program Files\Mozilla Firefox\firefox.exe'
driver = webdriver.Firefox(executable_path=r'C:\WebDrivers\geckodriver.exe', options=options)
driver.get('http://google.com/')
You can find a couple of relevant detailed discussion in:
Firefox was not installed on my system at all. That's why this error came up.
same issue here:
Mac
Firefox applicationgeckodriver, can found in PATHFirefoxI have uninstalled firefox and installed it again which resolved my issue.
Before this ensure that path variable has include for geckodriver click here to download driver and run below python script.
from selenium import webdriver
from selenium.webdriver.firefox.options import Options
options = Options()
options.binary_location = r'C:\Program Files\Mozilla Firefox\firefox.exe'
driver = webdriver.Firefox(options=options)
driver.get('http://google.com/')
as a side note for selenium/firefox (but with C#, not Python), this issue is quite relevant now in the sense that firefox location looks to be stored in windows in a new regedit location. Indeed geckodriver is looking in regedit location documented here:
HKEY_LOCAL_MACHINE\SOFTWARE WOW6432Node\Mozilla\Mozilla Firefox\[VERSION]\Main\PathToExe
HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Mozilla Firefox\[VERSION]\Main\PathToExe
Source: https://developer.mozilla.org/en-US/docs/Web/WebDriver/Capabilities/firefoxOptions
when on my machine it is there:
HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Mozilla Firefox 109.0\bin
With the version number stored here:
HKEY_LOCAL_MACHINE\SOFTWARE\mozilla.org\Mozilla
and I set the selenium driver with C# Api with (path hardcoded for the poc):
var options = new FirefoxOptions();
...
options.BrowserExecutableLocation = @"C:\Program Files\Mozilla Firefox\firefox.exe";
Driver = new FirefoxDriver(options);
Regards
You should download appropriate web driver from https://github.com/mozilla/geckodriver/releases and put it into folder where your py file is. Also you can put it anywhere as long as the location of the file it is in your system path.
Selenium uses a web driver (a specific one for each web browser) in order to communicate with the browser installed on your system (Firefox in your case).
To use Firefox, you have to:
So the final code would look like this:
from selenium import webdriver
browser = webdriver.Firefox('./geckodriver')
browser.get('https://www.python.org/')
Note: Sometimes a newer version of the web driver isn't compatible with an older version of the browser installed on your system.
I have encountered the same problem (Windows, Firefox v99, Selenium 4.1.4, geckodriver 0.31.0), the path to exe file and the driver initialisation were set correctly, solved the issue by changing the win32 by win64 version of geckodriver
check whether firefox is installed in your system
firefox -v
if not, install using snap
sudo snap install firefox
This can also happen if you are trying to use 32 instead of 64 bit on a 64 bit system
You need to download geckodriver.
https://github.com/mozilla/geckodriver/releases
from selenium import webdriver;
browser= webdriver.Firefox('./geckodriver');
browser.get('http://www.seleniumhq.org');
