How to Block/ Remove Pop-up Ads in Mozilla Firefox

Mozilla Firefox is not only one of the most used web browsers, but also one of the most favorite target of adware programs, browser redirect viruses, Potentially Unwanted Programs (PUPs) and other computer viruses. It’s certainly very annoying to get unwanted pop-up advertisements. But don’t worry! This article will explain how to block and get rid of unwanted pop-up ads and you should be able to fix your problem in no time!

Before we block or remove those pop-up ads, we should know what causes these pop-up and whether it’s a virus. Usually, there are two kinds of pop-up ads you may see when using your computer: pop-ups from websites that you visit and pop-ups that are created by existing adware programs and spyware in your PC. So let’s break down each scenario and see how we can fix each one.

Remove Pop-up Ads from Websites

You will know if a website gives you pop-ups when you often visit it, as those pop-ups appear only when you visit certain website. Such pop-ups will not give you much trouble, as it will not always affect your browsing. Most web browsers have built-in pop-up blockers to help you block such pop-ups. It’s very easy to block such pop-up. You can completely block all pop-ups, but it will cause problems with websites which need to rely on pop-ups to use.

How to Block Pop-ups in Mozilla Firefox

1. Open Mozilla Firefox

2. Click the menu button and choose Options
firefox-options

3. Click Content tab and check Block pop-up windows.
firefox-content-block-pop-up

4.You can click Exceptions button in the above window to specify which websites can open pop-up windows.
firefox-allowed-sites-pop-up

If you still get pop-up ads and windows on every web page you’re browsing, then you should carefully read the following part.

Remove Pop-up Ads from Adware and Spyware

How can you know your pop-up problem is a result of adware and spyware? Well, there are a few obvious symptoms telling that your computer may have been affected by adware and spyware, such as,

  • 1. Ad banners appear with every web page you’re browsing.
  • 2. Random word phrases are turned into hyperlinks which will display ad banners when you move your mouse over them.
  • 3. You will get many sponsored ads when doing online searches and your searches are redirected to other websites.
  • 4. Your home page may be changed into another website without your permission.
  • 5. You get pop-up windows that recommend fake updates or other programs.
  • 6. Unknown add-ons are installed to your browser.
  • 7. Web pages take more time to load.

If your computer has one of the above symptoms, it’s highly likely that your computer has been affected with adware or some kind of malicious programs that can escape the detection of your current installed antivirus and antispyware. But don’t worry! You can follow the removal instruction below to remove your pop-ups.

Before the removal, please note that you must proceed at your own risk. Any incorrect actions might lead to loss of important data or damage your system. Please always back up your personal files before the removal.

Step 1. Uninstall Adware Programs or PUPs that Cause Pop-ups

1.1: open Programs and Features

To uninstall a program from Windows Vista and 7:
a. please click Start button and then click Control Panel
control panel
b. Then click Uninstall a program
uninstall a program

To uninstall a program from Windows 8 or later :
please go to the Windows 8 Start Screen and type uninstall. When the search results appear, click on the Settings category as shown below.
win8-search-uninstall

1.2: Uninstall all programs that are not installed by you from the list.
uninstall-program-list

Step 2. Remove Pop-up Ads from Mozilla Firefox

2.1: click the Firefox button at the top of the Firefox main window, and select Help sub-menu and click the Troubleshooting Information.
Firefox-troubleshooting

2.2: Click the Reset Firefox button.
Reset-firefox

2.3: click Reset Firefox in the confirmation window that opens to continue.
click-reset-firefox-2

Step 3. Remove Malicious Entries and Files of Adware and PUPs

3.1: “Win + R” keys to open “Run”
windows-r

3.2: Type in regedit, hit Enter
regedit

3.3: now, search for adware programs and remove their entries
registry

3.4: remove the following files of adware programs:

C:\ProgramData\[random]
C:\Program Files\[random]

Warm Tips:

Manual removal of adware requires certain computer expertise, as it’s not easy to identify and delete all malicious files and components of adware in the registry and hard disk. Any slightest mistake can cause data loss or even system crash. Therefore, it’s recommended that you employ this powerful Automated adware Removal Tool to completely remove adware and other hidden computer viruses off your computer. Click and download this powerful Automated Removal Tool below.

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