With Mozilla 0.9.9 To Reproduce: o Select "Tabs" -> "Customize Sidebar..." o From the "available tabs" select one and add it to the "tabs in sidebar". o Click ok when finished. o Notice that now the Sidebar is all grey. No tabs showing at all. If you go to "View" and deselect "Sidebar" and select it again the sidebar resets itself and everything shows properly.
Should be fixed by the fix for bug 127973.
I believe this got fixed yesterday with the fix for bug 127113.
verified in 3/22 build. Jose, REOPEN if this is still not working for you. try in latest build.
Working great in latest build!