Comment 13 for bug 54633

(In reply to comment #3)
> The current behavior comes from IE.
> IMO, we should keep this in line with what IE does.

Reopening as IE7 has now changed the direction of zoom.
If somebody still wish the other way it can be an about:config item

Good if we can have a zoom button,
see IE7 attachment 245423 on
bug 155562 Ability to add a Zoom button to the Toolbar

Also there should an about:config item to change
ctrl+scroll to shift+scroll or alt+scroll
to avoid situation like bug 215950
"Ctrl + scroll wheel does not zoom text if system scrolls one screen at a time"

similar bugs
bug 299879 <control + mouse scroll> zooms in wrong direction for gnome
bug 358431 Ctrl + mouse wheel zooms in wrong direction