Useful, but on website pages that have 'click more to read/view' buttons at the bottom of an article, those dont work so you might not be able to access all of an article. Example a new website article with a gallery which has a click to view more images button, that wont work nor do any other buttons on the website page whilst this is running.
I would submit this to a feedback, but i dont use twitter.

good!

Helps not always, but quite often to remove a lot of annoying floating foregrounds of all kinds.

Works like magic!

Great idea. But I tried many sites, and this add-on was never able to remove one single pop-up. Ctrl-Shift-X had no effect whatsoever.

Excellent, does what it promise but, sadly, only on desktop. Can you make it work in Firefox for Android on a mobile? I use Nightly with a custom addon collection, and the problem is that it doesn't seem to have a toolbar, so I cannot tap the icon or press the keyboard shortcut, this being a phone.

Works like a charm!