How to Block Popups on Certain Sites With Firefox

Written by jason artman
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All major Web browsers today contain built-in popup blockers. The popup blocker in Mozilla Firefox can prevent the browser from displaying most types of popup windows commonly used for advertisements. However, there may also be legitimate popup windows that you do not want to block. For this reason, Firefox allows you to selectively block popup windows from some websites and allow them from others.

Skill level:
Moderately Easy


  1. 1

    Launch Firefox, click the "Firefox" menu in the upper-left corner of the window, then click "Options."

  2. 2

    Click the "Content" tab, then click the "Exceptions" button next to "Block pop-up windows."

  3. 3

    Click the "Address of website" field at the top of the window and type the address of a website that you want Firefox to display popup windows on. Click the "Allow" button to save it to the list. Continue this until you have added the address for all of the websites that Firefox should not block popup windows on. Firefox will block all popup windows on all websites not on this list.

  4. 4

    Click a website on the list in the bottom half of the window, then click the "Remove Site" button if you want Firefox to return to blocking popup windows from that website.

  5. 5

    Click "Close," then click "OK."

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