/usr/share/mozilla-devscripts/xul-app-data.csv.Ubuntu is in mozilla-devscripts 0.39+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | id,package,sol,eol
{ec8030f7-c20a-464f-9b0e-13a3a9e97384},firefox,3.6a1pre,*
{3550f703-e582-4d05-9a08-453d09bdfdc6},thunderbird,2.0,*
{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a},seamonkey,1.1.6,*
|