Helped seamlessly block popup windows I was getting on several websites. Highly recommend.

Works 100% nothing negative.

Quite Cool!

Funziona perfettamente, evita che si aprano quelle noiosissime finestre con le pubblicità che non ti consentono di chiudere le schede

works very good. makes surfing the web bearable again. thanks

Works great

It does exactly what it has to, block all popups. And it does it perfectly. Keep it up!

i like it

its good.not great but good.Blocks 99% of ads.i wish it has an pop up blocker in it.then it would be great

I enjoyed this add-on because since I'm using this, I'm no longer get constant pop-ups whenever I'm on some sites.

An amazing add-on that i use on every browser. Works flawlessly.

This addon is great. Blocks all popups and it allows you to whitelist. I got it specifically to block the popups that just won't stop on certain shady websites that allow you to view movies or shows etc and it works perfectly.

Really works great! I usually get annoying pop ups from streaming site but haven't got any since downloading.
THANK YOU :)

Popup Blocker Ultimate blocks almost all popups that other pop up blockers fail to stop. And the dev is honest and does not sell our usage data or other dubious practices. I seriously recommend to support this guy with a donation, honest behavior and good quality should be rewarded!

And for the love of god, those of you that whine about the page that asks for a donation: that page should not show more than once when you install and once when you uninstall. However I have noticed that it may also appear after updating Firefox. But in any case ffs, stop whining! This pop up blocker is super awesome, it works really well, it's FREE, and the devs does not sell our browsing habits or usage data or other such nonsense.

Great addon