Firefox logo on a purple background

Mozilla Firefox blocks any pop-ups on your websites by default. If you’d like it to show those pop-ups, you will have to disable the built-in pop-up blocker first. We’ll show you how to do that in Firefox on desktop, iPhone, and iPad.

Note: Firefox’s Android app does not have a pop-up blocker, which means you do not have to do anything to enable pop-ups. They are already enabled.

RELATED: How to Disable Windows 10's Taskbar Pop-up Notifications

Disable Pop-Up Blocker in Firefox on Desktop

To turn off the pop-up blocker in Firefox on your Windows, Mac, Linux, or Chromebook computer, first, launch Firefox on your computer.

In Firefox’s top-right corner, click the three horizontal lines.

Click the three horizontal lines in Firefox's top-right corner.

From the menu that opens, select “Settings.”

Select "Settings" from the Firefox menu.

On the settings page, in the left sidebar, click “Privacy & Security.”

Click "Privacy & Security" in Firefox settings.

On the right pane, scroll down to the “Permissions” section. Here, at the bottom, disable the “Block Pop-Up Windows” option.

Deactivate the "Block Pop-Up Windows" option.

And that’s it. You have successfully turned off Firefox’s built-in pop-up blocker. Any site can now show pop-up windows when you visit them.

Allow Pop-Ups for Specific Websites on Firefox

One good thing about Firefox is that you can enable pop-ups for specific sites while blocking them on all other sites. If you’d like to do this, then next to the “Block Pop-Up Windows” option (this option must be enabled), click “Exceptions.” On the “Allowed Websites – Pop-Ups” window that opens, type the full address of the site where you want to enable pop-ups, click “Allow,” and then click “Save Changes.”

Allow pop-ups on specified sites in Firefox.

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Firefox will now allow pop-ups from your specified sites while blocking them on all other sites. Enjoy!

If you use Chrome alongside Firefox, you can disable the pop-up blocker in Chrome, too.

RELATED: How to Allow or Block Pop-ups in Chrome

Disable Pop-Up Blocker in Firefox on iPhone and iPad

To allow websites to show pop-ups in Firefox on your iPhone or iPad, first, open Firefox on your phone.

In Firefox’s bottom-right corner, tap the three horizontal lines.

Tap the three horizontal lines in Firefox's bottom-right corner.

From the menu that opens, select “Settings.”

Choose "Settings" from the Firefox menu.

On the “Settings” page, scroll down and toggle off the “Block Pop-Up Windows” option.

Turn off "Block Pop-Up Windows" on the "Settings" page.

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Firefox on your iPhone or iPad will no longer block any pop-up windows. You are all set.


While using Firefox, do you get annoyed by those search suggestions that appear as soon as you start typing in the address bar? Luckily, you can disable those suggestions and cut that annoyance out of your life.

RELATED: How to Disable Search Suggestions in Mozilla Firefox

Profile Photo for Mahesh Makvana Mahesh Makvana
Mahesh Makvana is a freelance tech writer who specializes in writing how-to guides. He has been writing tech tutorials for over a decade now. He’s written for some of the prominent tech sites including MakeUseOf, MakeTechEasier, and Online Tech Tips.
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