On Thu, 13 Dec 2018, Felmon Davis wrote:

> greets!
>
> don't know if it's related to Stretch - I recently upgraded from Jessie (now 
> somewhat to my regret) - but I did an update of Firefox via the Mozilla 
> online update.
>
> subsequently (and as an effect?) Firefox lost vertical scrollbars. I tried 
> various things with the themes (unsystematically) and now have a circumstance 
> where I get:
>
> "GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is 
> not supported"
>
> when I try to start Firefox, Pan and Google-Chrome-Stable. online googling 
> has so far yielded nothing useful.

things got worse, e.g. turned out FF and Chrome were unresponsive; 
eventually I got worried I might have to re-install to recover sanity, 
which itself would be crazy.

I removed some of gtk3 (removed gtk3-tqt-engine-trinity, 
gtk2-engines-oxygen and I believe libgtk-3-bin), settled on Redmond, 
uninstalled google-chrome-stable (which I subsequently reinstalled).

results of (some elements of) this are:

chrome, pan, FF fully functional
problem with menu items in OpenOffice disappearing is 
solved.

there are exotic error messages when I start some things in a terminal 
which I may try to track down during my next bout of procrastination.

fjd

-- 
Felmon Davis