The pop-up blocker in the Yahoo toolbar for Internet Explorer by default is not set to block pop-ups. Instructions are provided here to start the blocker and to set it to allow pop-ups from MedFair.
First we need to block a pop-up from MedFair.com.
Locate the Yahoo toolbar near the top of the browser. Open the pop-up blocker menu by clicking the pop-up blocker icon in the Yahoo toolbar, and select "Enable Pop-Up Blocker" from the dropdown menu.
To block a pop-up from MedFair.com, we have to enable the pop-up blocker. Select "Enable Pop-Up Blocker" in the dropdown menu.
Make sure that the blocker is on by moving your mouse over the pop-up blocker icon. (Note: The “Total Blocked” number may be >1.)
To set Yahoo pop-up blocker to allow pop-ups from a given site, the blocker must previously have blocked a pop-up from that site.
The list of sites from which pop-ups have been blocked allows you to choose the sites from which you want to allow pop-ups.
Login to MedFair.com with the pop-up blocker activated.
Click the Yahoo blocker icon again to reopen the dropdown menu. Select "Always Allow Pop-Ups From..."
The "Yahoo! Pop-Up Blocker" window will open. It lists sources of recently blocked pop-ups and sources that are always allowed to send pop-ups. Locate www.medfair.com in the list of recently blocked pop-ups, and click it once. This will highlight your selection.
Click the “Allow” button near the top of the window.
A window will open requesting confirmation that the Yahoo! Pop-Up Blocker should always allow pop-ups from www.medfair.com.
Click "OK."
Look at the "Always Allow Pop-Ups From These Sources" list: www.medfair.com should be one of the addresses included.
Click “Close” to close the dialog box.