The
new version of Mozilla, 1.1, is released for many operating systems. Release notes
here.
Opinion: Check the
screenshot, showing Mozilla's slow UI (XUL) performance on a dual Celeron @ 533. Before you comment on it, please read the already published comments, because we explain more over there.
Update: I added a comment with the image attachment on Mozilla's BugZilla. There was already a bug entry for this, which suggests more people having problems with this behavior. See? I am not mad...
Update2: And here is
another bug submitted by someone else, with the same problem, and his
shot. His bug is marked as "Verified". But it is still not fixed.