Possible problem with tab location in 67.0.1
I have not upgraded to 67.0.1 because the last time I upgraded, Firefox moved my tabs from under the address bar which is where I like them to above it. I had to go through a complicated fix to restore the tab location I want.
Will Firefox 67.0.1 do the same thing and change the location of my tabs which currently display under the address bar?
Alla svar (1)
Hi mikejanus, as you probably recall, the structure of the toolbar area changed in Firefox 65. As far as I know, Firefox 65-67 have the same internal layout for that area. This may change in Firefox 68.
Depending on where you got your userChrome.css rules, those rules may or may not work the same in all three versions. I don't think anyone here knows what is on your computer, so that's all I can tell you.
However, if there is a problem with the bar position in Firefox 67, feel free to ask for more help.