User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:2.0) Gecko/20100101 Firefox/4.0 Build Identifier: Mozilla/5.0 (Windows NT 6.1; rv:2.0) Gecko/20100101 Firefox/4.0 vAlthough I have unchecked "Small icons" in the customizing menu on the toolbar, I have a problem of size of the icons of said toolbar: they are too small and the problem is resolved only when I press Ctrl+D (see screencap). Reproducible: Always

Works for me on: Mozilla/5.0 (Windows NT 6.1; rv:2.0) Gecko/20100101 Firefox/4.0 Can you reproduce the issue on a clean firefox profile (without any addons, themes installed)? http://support.mozilla.com/en-US/kb/Profiles If yes, it is likely to be a bug.

Well I'va uninstalled it totally and then reinstalled, and nothing happens to the size of the icons when I press Ctrl+D now (even with themes and addons installed). The icons are like this now: http://img135.imageshack.us/img135/397/capturech.jpg (sorry for the small size of the pic).

Please don't install addons and themes for now, can you see if it occurs in a brand new (empty) profile: http://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile

I've created a new, clean profile to test. Nothing happens when Ctrl+D, so I guess uninstalling and deleting totally my profile yesterday did change something. Regarding my first screencap (http://img12.imageshack.us/img12/1208/screencapp.jpg), what would be the normal size of the icons (when "Small icons" is unchecked), the one above or below (the one above being what I have now)? When I cleaned totally Firefox out yesterday, I've carefully checked in turn when I installed the addons, to see which one would cause this "problem", but it didn't happen with the installation with any of them (no with any persona either). I hope I'm clear, if I'm not please tell me. Sorry for the trouble, if any.

I've created a new, clean profile to test. Nothing happens when Ctrl+D, so I guess uninstalling and deleting totally my profile yesterday did change something. Regarding my first screencap (http://img12.imageshack.us/img12/1208/screencapp.jpg), what would be the normal size of the icons (when "Small icons" is unchecked), the one above or below (the one above being what I have now)? When I cleaned totally Firefox out yesterday, I've carefully checked in turn when I installed the addons, to see which one would cause this "problem", but it didn't happen with the installation with any of them (no with any persona either). I hope I'm clear, if I'm not please tell me. Sorry for the trouble, if any.

Actually, I've just bookmarked a new website and here we go again with the changing size of the icons (the size like the part below in the screencap I've inserted in my previous comment).

I've deleted my profile again, then reinstalled addons but I did not put the ADP icon in the toolbar so now I don't have this problem anymore. Thanks for your help, especially when redirecting to bug 640158.