Firefox has long been my web browser of choice. Features such as tabbed browsing, multiple extensions, and intelligent popup blocking make it the most usable browser available.

Lately, however, it seems that more and more popups are managing to get through. I did some checking, and it seems that the Macromedia Flash plugin allows webmasters to launch popups in a way that bypasses Firefox’s built-in blocking mechanism.

Fortunately, there’s a way you can get around it. Here’s what you have to do:

1. Type “about:config” into the Firefox location bar.

2. Right-click on the page and select “New–> Integer”

3. Name the new value “privacy.popups.disable_from_plugins”

4. Set the value to 2.

In case you’re interested, the other possible values are:

· 0: Allow all popups from plugins.

· 1: Allow popups, but limit them to dom.popup_maximum.

· 2: Block popups from plugins.

· 3: Block popups from plugins, even on whitelisted sites.