Comment 1 for bug 132938

Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20040911 Firefox/0.10
Same problem here.
Try opening e.g. this page: http://www.mozilla.org/products/firefox/ in the
sidebar, and when hovering the mouse over the mozilla logo at the top you should
see the text [Return to homepage] in a tooltip. This works fine in a normal
window, but the tooltip doesn't show up if the page is loaded in a sidebar.

Reproducible: Always
Steps to Reproduce:
1. Add this link as an bookmark: http://www.mozilla.org/products/firefox/
2. Go to Bookmarks|Manage Bookmarks and right click on the bookmark you added
and select properties
3. Click the "Load this link in the sidebar" checkbox
4. Close the Bookmarks Manager
5. Select the bookmark you added in your bookmark menu and watch the link open
in a sidebar
6. Try to hoover the mouse over the mozilla logo

Actual Results:
Nothing happens when hoovering the logo

Expected Results:
Tooltips should have been displayed, the same as if the page were loaded in the
main frame.