User-Agent: Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8 When you go to Tools->Options-Themes I noticed I had a default theme called "Mozilla Thunderbird" but notice you can click right underneath it, and there's an empty theme listed. I installed 2 more themes, and it listed the themes like this: Mozilla Thunderbird Noia 2.0 Qute (Mozilla Thunderbird release 0.5) with Nitpick 0.1.7.6 iconmod Well, what's up with that empty theme listed as the second one? and there is no "Uninstall" theme button enabled for this blank theme. Reproducible: Always Steps to Reproduce: 1. go to Tools->Options->Themes 2. using the "Install New Theme" button, install a theme 3. using the "Install New Theme" button, install a second theme 4. don't use another theme than your current one, i.e. I kept the "Mozilla Thunderbird" theme selected 5. click "OK" hence not changing your theme 6. go to Tools->Options->Themes and you'll notice the bug Actual Results: You'll see there's a blank theme listed I have a screenshot: http://ingrato.homeip.net/~ingrato/themes.jpg Expected Results: not had that empty/blank theme listed.
Duplicate of Bug 139285?
-> invalid. The themes pref panel was removed in favor of the themes manager.