I accidentally disabled the FireFox information Bar which informs me
if it blocked a popup.

How do I get back on?

There is an answer on Yahoo Answers:

I did that but it still didn't work. The answer is below - what should
I do?

========Answer======didn't work=======
Open a new tab

type "about:config" (without quotes) in the Location Bar and press

search for the following (enter it into the "filter" textbox)


set the value to true (double click on the
browser.popups.showPopupBlocke... entry)

restart firefox