mochitest failures for #23104 patch
I ran the mochitests for the legacy/trac#23104 (moved) patch on our tor-browser-52.6.0esr-8.0-2 branch on Debian GNU/Linux 9.1 and I ran into the following failures:
Passed: 3
Failed: 3
Todo: 0
failed | Line Height validation - got 20.4, expected 19.8
failed | Line Height validation - got 20.4, expected 19.8
failed | Line Height validation - got 20.4, expected 19.8
passed | Line Height validation
passed | Line Height validation
passed | Line Height validation