This addon is very useful. I use this everyday.

But, it seem not to reflect current/foreground tab information for addition to Flipboard. This extension might use information of last opened or accessed tab even it is in the another window. To cope with this behavior, I reload or switch current tab several times and I repeat addition and check additional an article title match with the purpose tab's.

Also, a height of the popup window for addition is not enough to show information I think. It locates magazine's names for addition below and hidden area, so I sometimes mistake magazine to add. In this reason, I need to check magazine's name to scroll popup window almost every addition. I hope rearrangement of parts in popup window.

This add-on was a great replacement for FlipBoard's own tool (which FF disabled) but stopped working for me somewhere around FF version 60.0.0. It's simple and reliable if you're using it with a recent (but not the MOST recent) version of FF.