What is pop-up windows? - Facebook Social Network

To sign in to Web Messenger, you'll need to disable the Pop-Up Blocker. Follow the steps for your browser:

For Firefox:

1. When a pop-up is blocked:
   - You'll see a bar at the top of the browser window that says "Firefox prevented this site from opening a pop-up window."
   - On the right side of that bar, you'll see an Options or Preferences button.
2. Click Options or Preferences ' select Allow popups for webmessenger.yahoo.com.
3. Click Sign-in again.
   - You may need to reload the sign-in page.

For Internet Explorer:

1. When a pop-up is blocked:
   - You'll see a yellow bar at the top of the browser window.
   - You'll see a message that says "Pop-up blocked. To see this pop-up or additional options click here...".
2. Click on that yellow bar at the top of the browser window ' select Always Allow Pop-ups from This Site ' click Yes on the confirmation dialog.
3. Click Sign-in again.

For Safari:

1. You'll see a warning above the Sign-in button.
   - You won't see any other type of warning.
2. Select the Safari menu at the top-left of your screen ' un-check Block Pop-up Windows.
3. Click on Sign-in again

• Address of Web site to allow. Enter a URL and click Add to add sites to the Allowed sites list. Any site on the list can open pop-up windows.
  
  
• Filter Level. There are three different filter levels that you can use with Pop-up Blocker:
  
  
  • High: Block All Pop-ups. The default behavior of Pop-up Blocker allows sites to open a pop-up window when the user clicks a link. This setting changes that behavior by blocking windows that are opened from a link. If this setting is enabled, you can allow pop-up windows to open by pressing the CTRL key at the same time that you click the link to launch the pop-up.
    
    
  • Medium: Block most automatic pop-ups. This is the default Pop-up Blocker setting. This setting blocks most pop-ups that launch automatically when a Web site is loaded into your browser, but doesn't block pop-ups that are opened when you click a link.
    
    
  • Low: Allow pop-ups from secure sites. This setting allows secure Web sites (those that use the https:// protocol) to automatically launch pop-up windows without requiring that you add them to the Allowed sites list.