It is not working

It does not block Mastercard site on Crypto.

And for me, since my text size is a little larger than normal I could not see any method for removing the popup, which prevented me to using the web site. The two buttons for dealing with the popup, provided within the popup by Mastercard, were not seen by me and so I was not able to use the web site until I guessed that there might be some hidden buttons; which I then revealed by scaling down my font size. Such is the stupid life of Windoze users. I was using Firefox on Windows 10. When I browsed to the same web site using Firefox on the Mac, my system effectively blocked the popup without me even knowing it had.

Isn't working to stop video pop ups.

I'm getting a constant issue with "Do not block on this domain" checkbox. When not checked it refreshes the page and rechecks itself...

used to be great but the update ruined it, i have no use for it without the blacklist option

It was working at first, then it suddenly decided to be globally disabled, despite the box for the option being checked. Now I have to manually turn globally enabled on and off on a website for the blocker to work again. Even then, once I leave that page or website it goes back to being globally disabled all over again. I shouldn't need to do that on a popup blocker.

On Android not working correctly.

This addon offers several options to handle popups, but....

1. Allow popup does nothing
2. Trust popup only works on second try
3. Open in background does the opposite

Just the deny and redirect buttons work as expected.

On windows no issues so far.


edit: This addon makes many internet sites not accessible!
For example not 'idealo.de' many offers show errors, but not without this addon.

For many month the author does not care to fix the issue or to reply at github. Not sure why Mozilla still recommends. Probably due decades of fatal management and financial problems.

did not work on foxnews(.com) or lyrics(.com)

Not effective. Seem to be getting just as many popups as I did before installation.

I send daily reports to this creator. Daily! Each report details the next website that gives me popups. Strict blocker? I think not.

I don't know how this works for normal pop-ups, because I already have a extension that blocks them. but I wanted one to block annoying ones that open a new tab every few times I click on a html5 player to choose a control. this add-on did not do anything more than my old one did from another author.

Every time I try to add it, or Facebook blocker, it invites me to download Firefox for the 43rd time

Doesn't work on many pages.

Sounds like a good idea, but in practical use, it's not. For casual browsing, I guess it is probably useful, but for everything else, it just messes up. At work, I access documents on-line, which are opened as pop-ups (yes, it's stupid, but that's how it was designed and there is absolutely nothing I can do to change that and, because it's work, I have to deal with it, and for a good part of my day). White-listing my work's site didn't work, neither did the forceful open option (the pop-ups opened blank, because they were, actually, redirects from the add-on, so the site didn't trust them and, therefore, the access was denied). In the end, it caused more troubles than occasional pop-ups would.