Popupblocker by Joofthan
Block unwanted pop-up windows in Firefox with Popupblocker, which can show a small notification when it stops one.
About Popupblocker by Joofthan
Popupblocker by Joofthan is a Firefox extension that prevents websites from opening new windows and tabs. It is intended to stop pop-ups that appear when clicking links or selecting text, including windows that contain ads. When it blocks a pop-up, it shows a small notification.
The extension includes a Smart option that tries to determine whether a new tab was requested and limits sites to one tab at a time. A Block all option prevents new tabs without permission. Users can add websites to a blacklist or whitelist and set separate rules for each list, such as blocking new windows while allowing new tabs.
It suits Firefox users who want more control over pop-ups and new tabs. The listing notes that Firefox 51 and 52 cannot block all pop-ups, so Firefox 53 or higher is needed for full function.
Key features
- Blocks websites from opening new windows
- Blocks websites from opening new tabs
- Smart option limits sites to one tab at a time
- Block all option requires permission for new tabs
- Separate settings for blacklist and whitelist
- Shows small notification when blocking a pop-up
Best for: Firefox users who want to control pop-ups and new tabs from websites.
Good for
- Separate settings for blacklist and whitelist
- Smart and Block all options for tab control
- Shows notification when a pop-up is blocked
- Not detected as popup blocker by most websites
Watch out for
- Does not block all pop-ups on Firefox 51 and 52
- Only works with Firefox
Popupblocker by Joofthan at a glance
- Category
- Software & Utilities › Browser Extensions
- Type
- App
- Pricing
- Not confirmed. Check the site
- Platforms
- Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Browser Extensions
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Popupblocker by Joofthan FAQ
What does Popupblocker do?
It prevents websites from opening new windows and tabs and shows a small notification when it blocks one.
Does Popupblocker support blacklists and whitelists?
Yes, you can add websites to a blacklist or whitelist and set separate rules for each list.
Which Firefox version does Popupblocker need?
The listing states Firefox 53 or higher should work fine, while versions 51 and 52 cannot block all pop-ups.
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