/usr/lib/firefox-addons/extensions/globalmenu@ubuntu.com/components/components.manifest is in firefox-globalmenu 11.0+build1-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | binary-component libglobalmenu.so
category profile-after-change uGlobalMenuLoader @canonical.com/globalmenu-loader;1
|