I'm not sure if I'm using this correctly but here is what is happening. I installed Widget Framework and then added my current sidebar widgets to forum_list, forum_view, thread_view. Worked great, all widgets show up. Then I add a Feed Reader widget, and that shows up correctly. https://www.dropbox.com/s/g6jiymn4v11x88t/Screenshot 2017-06-23 13.29.55.png?dl=0 Next I wanted to create a tabbed widget like in the screenshots of the add-on download page. So I add a Threads widget set to New Threads widget type. In the widget group i add column so I can group them together. That works and shows up. https://www.dropbox.com/s/0v0dkfjpwunszhw/Screenshot 2017-06-23 13.31.19.png?dl=0 Then went I add the next widget for that group, I add a new Threads widget, set it to Most Viewed Threads widget type and columns in the widget group. Once I save, not only does that not show up but then my original Feed Reader widget dissapears. https://www.dropbox.com/s/33rxbwlzko7iaqw/Screenshot 2017-06-23 13.33.34.png?dl=0 Here is a screenshot of the admin section: https://www.dropbox.com/s/qf765r7a5h0yi08/Screenshot 2017-06-23 13.34.11.png?dl=0 I assume I'm doing something wrong here but can't figure it out.