in the "Privacy" section, click the Content settings button.
In the "Pop-ups" section, select "Allow all sites to show pop-ups." Customize permissions for specific websites by clicking Manage exceptions.
Open Internet Explorer, select the Tools button , and then select Internet options.
On the Privacy tab, under Pop-up Blocker, select or clear the Turn on Pop-up Blocker check box, and then select OK.
Click the Open Menu button (it looks like 3 horizontal bars, located in the top right corner of the browser).
Click Options (for Mac, start from the Firefox menu using the Finder and select Preferences). You can also use the Tools menu if you press F10 or the ALT key.
Click the Content tab.
In the Pop-ups section, click Exceptions.
Select 'menu' (the Opera icon on the top left of your browser)
Select 'settings'
Click 'websites' from the list
Under the pop-ups section select 'allow all sites to show pop-ups'