由于雅虎独特的收益分享模式，浏览器劫持者将随机用户重定向到其搜索引擎是有利可图的。如果您发现自己的浏览器上发生了类似的事情，您应该立即采取措施将其关闭。
不断在搜索引擎之间来回切换不仅令人恼火，而且还会为病毒和恶意网站带来收入。以下是解决此问题并让您的首选搜索引擎再次运行的最佳方法。
修复 1：卸载恶意浏览器扩展(Malicious Browser Extensions)
病毒感染 Web 浏览器的唯一方法是通过扩展程序。这就是为什么许多用户禁用扩展程序的原因。如果您最近添加了任何未经验证的浏览器扩展，最好卸载它们。
这并不是说浏览器扩展天生就不好。有很多来自知名网站和服务的有用插件。问题在于鲜为人知的扩展实际上是伪装的病毒。
但是您如何确定哪个浏览器扩展是恶意的？一个全面的方法是删除所有扩展，然后逐渐将它们一个一个添加回来，检查问题是否再次出现。
- 在每个 Web 浏览器中查看已安装浏览器扩展的过程几乎相同。
- 在 Google Chrome(In Google Chrome)中，从右上角的三点菜单中打开设置，然后选择扩展程序。
- 在 Mozilla Firefox(In Mozilla Firefox)中，打开汉堡菜单，单击 Add-ons and Themes，然后选择 Extensions。
- 在 Apple Safari(In Apple Safari)中，打开菜单，选择首选项，然后切换到扩展(Extensions)选项卡。iPhone 和 iPad 等移动设备在菜单中直接为您提供了“管理(Manage) 扩展(Extensions)”选项。
- 您可以在此窗口中查看所有活动的浏览器扩展。浏览此列表并卸载您不使用（或不记得安装）的任何插件。这通常会删除有问题的扩展，因为它们通常是通过弹出窗口安装的。
修复 2：更改您的默认搜索引擎(Default Search Engine)
当您从 Web 安装粗略的应用程序时，它们通常会在安装过程中将Yahoo搜索引擎设置为默认值。(Yahoo)在这些情况下，您需要做的就是再次手动更改它。
当然，如果您实际上是被错误的浏览器扩展重定向，那么更改默认搜索引擎将无济于事。这就是为什么清理不必要的附加组件是解决问题的第一步。
再次，更改默认搜索引擎在所有领先的网络浏览器中都有类似的步骤。打开浏览器的下拉菜单，前往设置(Settings)（或Safari中的首选项），然后选择搜索(Search)（Chrome设置中的搜索引擎(Search Engine)）。现在您可以将您选择的搜索引擎设置为默认值。
如果您是少数使用Microsoft Edge浏览器的人之一，那么该过程会有所不同。从三点菜单中打开设置，然后选择隐私(Privacy)、搜索和服务。向下滚动(Scroll)到底部以找到地址(Address)栏和搜索选项。单击此选项会为您提供更改搜索引擎的选项（Bing是默认选项）。
修复 3：扫描您的 PC 以查找恶意软件
虽然经常更改浏览器搜索引擎的罪魁祸首是扩展程序，但您意外安装的垃圾程序也可能是罪魁祸首。你可以通过扫描你的电脑来解决这个问题。
此类病毒在危险恶意软件的图腾柱上处于低位，几乎所有防病毒应用程序都很容易检测到。使用内置的 Windows Defender 扫描您的计算机(Scanning your computer with the built-in Windows Defender)就足够了。
- 要使用Windows Defender(Windows Defender)运行病毒扫描，请打开Windows 安全(Windows Security)应用。您可以通过在“开始”菜单(Start Menu)中搜索安全来找到该应用程序。
- 切换到病毒(Virus)和威胁防护面板。
- 对于像这样的简单恶意软件，您只需要快速扫描即可。但是，如果需要，您可以单击扫描(Scan)选项以显示其他选项，然后选择完全(Full)扫描。无论哪种方式，Windows Defender都会扫描您的 PC 并删除发现的所有病毒。
修复 4：重置您的浏览器
恢复出厂设置始终是任何类型的浏览器问题的最终选择，无论它是由劫持扩展程序还是不正确的设置引起的。这会将浏览器恢复到其原始状态，清除所有用户设置和数据。
您可以重置(reset every web browser)除Safari之外的所有网络浏览器，您必须手动执行所有操作，从清除 cookie 到将首选项恢复为原始默认值。你最好只在Mac上禁用浏览器扩展。
重置您的浏览器似乎是一个极端的选择，但实际上您并没有损失那么多。书签之类的东西已经与您的Google帐户绑定，因此您可以立即从浏览器重置中恢复。
修复浏览器搜索引擎更改(Browser Search Engine Changing)为 Yahoo问题(Problem)的最佳方法是什么？
如果您的浏览器搜索引擎不断更改为 search.yahoo.com，则您可能已成为浏览器劫持者的目标。解决这个问题的最佳方法是删除无用的浏览器扩展并更改浏览器的默认搜索引擎。
如果不能解决问题，请使用防病毒工具扫描您的 PC 以删除Yahoo搜索重定向病毒，并重置您的浏览器以清除侵入性 cookie。
这些步骤在所有 Web 浏览器中几乎相同，只是使用的名称不同。您甚至可以使用这些修复程序从Android和 iOS 设备中删除Yahoo搜索，并将(Yahoo)Google搜索恢复为默认搜索引擎。
Browser Search Engine Keeps Changing to Yahoo? 4 Ways to Fix
Thanks to Yahoo’s unique revenue-sharing model, it’s lucratіve for browser hijackers to redirect randоm users to its ѕearch engine. If you notice something ѕimilar hapрenіng on your own browser, you should immediately take steps tо ѕhut it down.
Not only is it irritating to constantly switch back and forth between search engines, but it also generates revenue for viruses and malicious websites. Here are the best ways to fix this problem and get your preferred search engine working again.
Fix 1: Uninstall Malicious Browser Extensions
The only way for a virus to infect a web browser is through an extension. This is why many users have extensions disabled. If you recently added any unverified browser extensions, it’s a good idea to uninstall them.
That’s not to say that browser extensions are inherently bad. There are plenty of useful add-ons out there from reputed websites and services. The problem is with lesser-known extensions that are actually viruses in disguise.
But how do you determine which browser extension is malicious? A comprehensive approach is to remove all extensions, then gradually add them back one by one, checking if the problem reoccurs.
- The process to view installed browser extensions is virtually the same in every web browser.
- In Google Chrome, open Settings from the three-dot menu in the top right corner, and select Extensions.
- In Mozilla Firefox, open the hamburger menu, click Add-ons and Themes, and select Extensions.
- In Apple Safari, open the menu, select Preferences, and switch to the Extensions tab. Mobile devices like the iPhone and iPad directly give you a Manage Extensions option in the menu.
- You can see all active browser extensions in this window. Go over this list and uninstall any addon you don’t use (or don’t remember installing). This usually removes the offending extensions, as they are usually installed by popups.
Fix 2: Change Your Default Search Engine
When you install sketchy apps from the web, they often set the Yahoo search engine as default during the installation process. In these cases, all you need to do is to manually change it again.
Of course, if you’re actually being redirected by an errant browser extension, changing the default search engine won’t do anything. This is why cleaning up unnecessary add-ons is the first step to fixing the issue.
Changing the default search engine, once again, has similar steps in all leading web browsers. Open the drop-down menu of your browser, head to Settings (or Preferences in Safari), and select Search (Search Engine in Chrome settings). Now you can set the search engine of your choice as the default.
If you are one of the rare few who use the Microsoft Edge browser, the process is a bit different. Open Settings from the three-dot menu, and then select Privacy, search, and services. Scroll down to the bottom to find the Address bar and search option. Clicking on this presents you with the option to change your search engine (Bing is the default option).
Fix 3: Scan Your PC for Malware
While the usual culprit for constantly changing your browser’s search engine is an extension, unwanted programs you accidentally installed might also be responsible. You can fix that by scanning your PC.
Such viruses are low on the totem pole of dangerous malware and are easily detected by almost all antivirus applications. Scanning your computer with the built-in Windows Defender is sufficient.
- To run a virus scan with Windows Defender, open the Windows Security app. You can find the app by searching security in the Start Menu.
- Switch to the Virus & threat protection panel.
- For simple malware like this, a Quick scan is all that you need. But if you want, you can click Scan options to reveal other choices and select Full scan instead. Either way, Windows Defender will scan your PC and remove any viruses found.
Fix 4: Reset Your Browser
A factory reset is always the final option in any kind of browser issue, whether it stems from a hijacking extension or an incorrect setting. This restores the browser to its original state, wiping clean all user settings and data.
You can reset every web browser except for Safari, where you must manually do everything, from clearing cookies to restoring your Preferences to the original defaults. You are better off just disabling browser extensions on a Mac.
Resetting your browser may seem like a drastic option, but you actually don’t lose that much. Things like bookmarks are already tied to your Google account, so you can bounce back from a browser reset immediately.
What Is the Best Way to Fix a Browser Search Engine Changing to Yahoo Problem?
If your browser’s search engine keeps changing to search.yahoo.com, you are probably being targeted by a browser hijacker. The best way to beat this is by removing useless browser extensions and changing the default search engine of your browser.
In case that doesn’t fix it, scan your PC with an antivirus tool to remove the Yahoo search redirect virus, and reset your browser to clean up invasive cookies.
The steps are virtually the same in all web browsers, only differing in the names used. You can even use these fixes to remove Yahoo search from Android and iOS devices and restore Google search as the default search engine.
