Bug Firefox "Theme" - disable TabMixPlus MultiRow feature

[alextr3m]

If i put the chrome directory in .morzilla/firefox/xxx/chrome the multirow feature of Tab Mix Plus will not work.
Shoult look like

But it looks

[killhellokitty]

Sorry its taken so long for a reply. The reason is due to my having to change the CSS within the .morzilla/firefox/xxx/chrome folder to create the look of the tabs. They would need to be created within the chrome folder with the code for TabMixPlus for it to work properly.
I hope this helps. Now that Firefox has transitioned to Gtk3 since the 50 series, I can't be certain what measures would need to be taken.
killhellokitty~