如何在Python中更改Firefox Webdriver的用户代理?

问题描述：

我正在构建一个搜索机器人，并且希望将其从台式机更改为移动版

I'm building a search bot and i want it to change from Desktop to Mobile

我尝试使用profile.set_preferences，但是由于某种原因，它不会更改.它不会产生编译时错误，但不会更改用户代理.我也尝试过设置所需的功能，但这也不起作用.

I tried to use profile.set_preferences but for some reason it wont change. It doesn't give compiling time error but it wont change the user agent. I also tried setting the desired capabilities but that didn't work either.

if count == 0:
    browser = webdriver.Firefox(executable_path="geckodriver.exe")
else:
    profile = webdriver.FirefoxProfile()
    profile.set_preference("general.useragent.override", "Mozilla/5.0 (Android 4.4; Tablet; rv:41.0) Gecko/41.0 Firefox/41.0")
    browser = webdriver.Firefox(profile)

我希望它作为常规浏览器搜索一次，然后作为移动设备搜索，但它只是作为常规浏览器两次搜索，因此我确信我会增加计数.

I want it to search once as a regular browser and then to search as a mobile device but it just searches as a regular browser both times and i am sure that i increment count.

答

一种伪造 User Agent 的简单方法是使用FirefoxProfile()，如下所示:

A simple way to fake the User Agent would be using the FirefoxProfile() as follows :

from selenium import webdriver
from fake_useragent import UserAgent

useragent = UserAgent()
profile = webdriver.FirefoxProfile()
profile.set_preference("general.useragent.override", useragent.random)
driver = webdriver.Firefox(firefox_profile=profile, executable_path="C:\\Utility\\BrowserDrivers\\geckodriver.exe")
driver.get("http://www.whatsmyua.info/")

连续执行3次的结果如下:

Result of 3 consecutive execution is as follows :

首次执行:

First Execution :

Mozilla/5.0 (Windows NT 4.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2049.0 Safari/537.36

第二次执行:

Second Execution :

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.517 Safari/537.36

第三次执行:

Third Execution :

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1309.0 Safari/537.17

如何在Python中更改Firefox Webdriver的用户代理?

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