Browser highjacking viruses can be broadly defined as any code that changes the settings on your internet browser. Sometimes, even after these viruses are cleaned out, the settings remain unchanged and can cause issues and annoyances with the browser. Here are some quick steps you can follow to get your browser back to normal.
Step 1. Remove the Virus Homepage
A homepage is the first page you see when you open your browser. A browser highjacker can redirect this page to their own site rather than your preferred webpage. To change the homepage back, follow the directions below for each browser:
In Mozilla Firefox, navigate to Tools > Options or click Firefox in the top left corner and select Options > Options. Under the general tab remove any unwanted web address from the “Home Page” field and replace with your preferred home page URL.
In Google Chrome click the customize icon in the top right hand corner (either a wrench or three horizontal bars) and navigate to settings. Under “On Startup” select “Set Pages.” Remove any unwanted webpages and replace with your preferred URL.
In Internet Explorer navigate to Tools > Internet Options. Remove any unwanted webpages from the homepage field and replace with your preferred URL.
In Microsoft Edge click on the "..." icon and then Settings. You can change your homepage under "Open Microsoft Edge with".
Step 2. Remove Unwanted Search Engines
In Mozilla Firefox, click the small search magnifying glass near the search box (not the url/search field) and click “Manage Search Engines....” Remove any unwanted search engines from the list by highlighting the selections and clicking “remove.”
In Google Chrome, click the customize icon (wrench or 3 bars) and navigate to Settings > Manage Search Engines. Click the X next to any undesired search engines listed to remove them. If a search engine you wish to delete is set as default, first pick a new default search engine.
In Internet Explorer navigate to Tools > Manage Add Ons > Search Providers and remove any unwanted search engines.
In Microsoft Edge click on "..." in the top right and then Settings > Advanced Settings > Search Engines. Remove any unwanted search engines.
Step 3. Remove Unwanted Toolbars
In Mozilla Firefox Type Ctrl+Shift+A. On the Extensions and Plugin search for any suspicious add-ons and remove them if located.
In Google Chrome click on the Customize icon (wrench or 3 bar icon) next to the address bar and navigate to Tools > Extensions. Search for any suspicious extensions and remove them by clicking the trashcan icon next to them.
In Internet Explorer click Tools and select Manage add-ons. On the Toolbars and Extensions tab search for any suspicious add-ons and remove them if located.
In Microsoft Edge click on the "..." icon and then Extensions. Remove any unwanted toolbars or extensions by clicking the gear icon and then clicking Uninstall.
Step 4. Reset Your Browser
In Mozilla Firefox: https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems
In Google Chrome: https://support.google.com/chrome/answer/3296214?hl=en
In Internet Explorer: https://support.microsoft.com/kb/923737
In Microsoft Edge: http://www.howtogeek.com/237527/how-to-reset-microsoft-edge-in-windows-10/