there are no window buttons.

What exactly are 'window buttons'?

By that I mean the buttons to maximize, minimize or close a window

I've seen other windows not related to Thunderbird showing the same behavior. I think this is a Gnome thing, not Thunderbird. In any case, you can right-click the title bar of such a window and choose 'Close' to close it.

Have your tried another GTK 3 theme?

First of all, thanks for the response!

christ1 said

I think this is a Gnome thing, not Thunderbird.

It's not just in Gnome, it also happen in Cinnamon, when using the adwaita theme.

christ1 said

In any case, you can right-click the title bar of such a window and choose 'Close' to close it.

Yes I know, but wouldn't it be so much nicer if you could just close it by clicking? I'm pretty sure its an easy fix.

James said

Have your tried another GTK 3 theme?

I have, and it doesn't happen when using Ambiance for example (haven't tried any others)

Thank you trying to fix this!

M

Wonder if the Window manager theme used for title bar could be a issue actually.

Currently Firefox 41.0.2 and Thunderbird 38.3.0 requires GTK 2.18 or higher.

Firefox 43.0 may be requiring GTK 3.4+ at minimum so Thunderbird 45.0 may be also. This mean GTK 3 themes will be needed then.

Hi James,

I a little bit of a beginner in these things. How can I check whether Adwaita is a Gtk2 or Gtk3 theme?

Maarten Pelgrim

Since you have Gnome 3 and if a default theme it is likely a GTK 3.x version. Not used to Ubuntu but it should be listed in package manager if installed that way as one can put themes you get from gnome-look.org in say .themes for example.

Came across this thread http://askubuntu.com/questions/466610/corrupted-window-control-theme-on-unity

I still use Xfce even on fairly recently built system with i5-4690k and 16gb Ram I use GTK 2.x Themes, particularly a old Wii-Black theme I have done modifications to myself and still works good. The Xfce is like a lighter version of Gnome 2 as I dislike the Gnome 3 look and ways of doing things.

Yet to find a GTK 3.x theme I truly like but will have to use them when GTK 3.4+ will be the minimum requirement if I want to theme Firefox/SeaMonkey better compared to default look.

James said

Came across this thread http://askubuntu.com/questions/466610/corrupted-window-control-theme-on-unity

Interesting post!

It does not solve the riddle however. If I use the numix window theme (as is suggested) I still don't get window button in my reminder pop ups.

Could it be that it is simply a 'forgotten' type of window in the theme? By that I mean, that there are no settings in the theme index for such a popup window?

Suggest you enable the Title bar.

Try this:

• Edit >Preferences > Advanced > General tab
• Click on 'Config Editor' button
• it will tell you to be careful :)
• In top search type: title
• look for this line: mail.tabs.drawInTitlebar
• If Value = 'True', double click on the line to toggle the 'True' to 'False'
• close Config Editor window - top right X
• click on OK to save and close Options

Hi Toad-Hall,

Thanks for the response!

I have just tried out your suggestion, Unfortunately it didn't work.

MPE