Relevant bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1283299 https://bugzilla.mozilla.org/show_bug.cgi?id=1283299 Experimental Nightly build with

Relevant bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1283299 https://bugzilla.mozilla.org/show_bug.cgi?id=1283299 Experimental Nightly build with the Client-Side Decorations that you want enabled: https://github.com/stransky/gecko-dev/tree/titlebar-csd https://github.com/stransky/gecko-dev/tree/titlebar-csd (This link is taken from comment #64 in that bug report.)