To developer Rated 5 out of 5 stars

I saw your reply to my last feature request and now I have new requests:
1) Ability to make app button moveable like titlebar (you can move window by dragging app button) and if you can do this, I want ability to remove all free space in titlebar (it's then not needed for dragging anymore).
2) When you install any addon, there comes puzzle icon to urlbar and I want to see it as long as I haven't restarted Firefox (in all tabs), because I install a lot of addons at once and it's annoying to go to addons manager to just restart Firefox.
These fixes would help a lot and I want to say that I LOVE THIS ADDON!

This review is for a previous version of the add-on (1.4.3). 

Good job! Rated 5 out of 5 stars

Thank you for this great addon!I have a feature request that may not be a fix to Firefox's UI, but I need it. That is tab sliding instead of drag-n-drop. It is in IE9, Google Chrome 10, Opera 11, Apple Safari 5 etc. Why it is not in Firefox?
EDIT: Ok, I wait ;)

This review is for a previous version of the add-on (1.4.0). 

It would be hard for extension to do that, but it should be fixed in Firefox 5 (expected to release in 3-4 months).
https://bugzilla.mozilla.org/show_bug.cgi?id=455694