Draughtsnib: Popup-Blocker

Draughtsnib is a pop up blocker for unwanted new windows and pop-under windows.

It stops opening attempts without a click, after a click on empty space, through a simulated click or an invisible page-wide link.

This is not an ad blocker. Ads inside a page, overlays, cookie banners and site notifications are not removed. A site may evade page-script interception; Draughtsnib cannot guarantee every window. Browser pages and protected extension stores cannot be protected.

Use the bolt in the toolbar menu to allow a site immediately. Open the full log to inspect an address and choose Open to visit it in a new tab. Only HTTP and HTTPS addresses can be reopened. Forms and windows without an address are recorded as unknown; their actions cannot be replayed. Use Tab to move, Enter to activate, and Space to toggle a switch.

• Stop windows opened without a click.
• Catch window requests triggered by a click on empty space.
• See the reason beside each stopped address.
• Reopen a known HTTP or HTTPS address with one click.
• Allow a site with the toolbar bolt.
• Choose protection everywhere except your allowed sites.
• Or protect only sites on your selected list.
• Check page and total counters without notifications.
• Keep, clear or turn off the local log of up to 200 attempts.
• Back up site lists and settings without exporting the log.

Works offline. Your data stays in your browser. No analytics or data uploads. The full log is optional; three recent attempts per tab stay in session memory.

Permissions: website access intercepts window requests before page scripts; scripting applies your saved site rules at page start. The storage permission saves settings and the optional log; activeTab identifies the site when you open the menu.