Great extension with one major flaw Rated 3 out of 5 stars
The Ctrl-Tab implementation is great, however, I didn't expect this extension to also hijack Ctrl-PageDown & Ctrl-PageUp.
This design decision seems almost counter-intuitive since now there's no way of going through your tabs in sequence. For this reason I have to give Stack Style Tabs only 3 stars.
A comparable extension that does not modify the Ctrl-PageDown/Up behaviour is LastTab, however that extension is not compatible with Firefox 3 as of this review.