In the three-pane message preview window, the context menu item for "Block Images from this Server" (and "Unblock...") appears directly under the View Images item. However, in the Standalone window, the menu item appears at the top of the menu. These menus should be identical. This is true for the Image context menu and the Image Link context menu. Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7b) Gecko/20040316 Also 1.6 Final.
I've looked at the code for this and it's a bit of a mystery. The menu items in question do not reside in mailWindowOverlay.xul, unlike all the other menu items in these context menus. They apparently are being inserted by some other handler (presumably the handler which is also hiding those image-related menu items that *are* defined in the Mail program's XUL). This is exceptionally bogus design and ought to be reworked.
Regression from bug 78360.
Created attachment 144623 [details] [diff] [review] Centralize the overlay OK, so the imageblocker context menu items were getting overlaid before the context menu was overlaid, this fixes it by centralizing the overlay location. The imageblocker overlay could probably do with some cleanup too.
Comment on attachment 144623 [details] [diff] [review] Centralize the overlay Looking to fix this UI regression with a low-risk patch (ideally other stuff should be done as well, but probably not for 1.7)
Comment on attachment 144623 [details] [diff] [review] Centralize the overlay a=chofmann for 1.7
Fix checked in.
Verified with Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7b) Gecko/20040326 Thanks, Neil.