All colums in Page Info Media tab can be hidden.
One column at least should not be hidden.
Steps to repluduces:
1. Open Page info window.
2. Click right column of the column header
and uncheck all items.
Created attachment 99343 [details]
Confirming this bug - trunk build 2002091504 - WinXP.
Moving OS -> All.
Severity -> Trivial
still happens in 1.2.1/win2k. confirming.
Firefox/Trunk/Linux has this problem too.
Is this Core bug?
If so, please move this to right product/component.
Created attachment 594207 [details] [diff] [review]
Patch v1.0 Make the first treecolumn in each tree primary.
See Firefox Bug 560143 (Prevent the "Address" column in Page Info's Media pane from being hidden).
Pushed to comm-central: