By default Firefox blocks most pop-up windows but allows some to appear.
This add-on adds a button on the toolbar to toggle between:

• the default Firefox behavior of allowing some pop-ups, and
• blocking all pop-up windows.

Install

• License: Mozilla Public License 2.0
• Weekly downloads: 508
• Average daily users: 34076
• Rating: 4.0141/5 of 142 ratings
• Created: 2014-05-20 04:31:17
• Last updated: 2017-12-07 10:50:07
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/strict-pop-up-blocker/
• API: jid1-P34HaABBBpOerQ@jetpack