The Session restore mechanism in Tab Mix Plus is not causing the problem; it is disabled in my setup (I use Session Manager), but I still see the symptoms described above if both TMP and Ubufox are enabled.
I'm not sure what screenshots are going to achieve. A screenshot of an affected window will be a standard set of buttons and layout. Do you have Ubuntu Firefox Modifications (aka Ubufox) enabled? It appears to be the combination of both addons that causes the problem.
The Session restore mechanism in Tab Mix Plus is not causing the problem; it is disabled in my setup (I use Session Manager), but I still see the symptoms described above if both TMP and Ubufox are enabled.
I'm not sure what screenshots are going to achieve. A screenshot of an affected window will be a standard set of buttons and layout. Do you have Ubuntu Firefox Modifications (aka Ubufox) enabled? It appears to be the combination of both addons that causes the problem.