--- ./browser/config/mozconfigs/linux32/common-opt.orig	2017-03-27 16:47:57.039428674 -0700
+++ ./browser/config/mozconfigs/linux32/common-opt	2017-03-27 16:43:26.004591584 -0700
@@ -3,6 +3,7 @@
 ac_add_options --enable-update-channel=${MOZ_UPDATE_CHANNEL}
 ac_add_options --with-google-api-keyfile=/builds/gapi.data
 ac_add_options --with-mozilla-api-keyfile=/builds/mozilla-desktop-geoloc-api.key
+ac_add_options --disable-startupcache
 
 . $topsrcdir/build/unix/mozconfig.linux32
 
--- ./browser/config/mozconfigs/linux64/common-opt.orig	2017-03-27 16:46:54.794982020 -0700
+++ ./browser/config/mozconfigs/linux64/common-opt	2017-03-27 16:47:05.345170624 -0700
@@ -3,6 +3,7 @@
 ac_add_options --enable-update-channel=${MOZ_UPDATE_CHANNEL}
 ac_add_options --with-google-api-keyfile=/builds/gapi.data
 ac_add_options --with-mozilla-api-keyfile=/builds/mozilla-desktop-geoloc-api.key
+ac_add_options --disable-startupcache
 
 . $topsrcdir/build/unix/mozconfig.linux