copy from browser/config/mozconfigs/linux32/nightly
copy to browser/config/mozconfigs/linux32/devedition
--- a/browser/config/mozconfigs/linux32/nightly
+++ b/browser/config/mozconfigs/linux32/devedition
@@ -1,14 +1,16 @@
 . "$topsrcdir/browser/config/mozconfigs/linux32/common-opt"
 
-ac_add_options --enable-profiling
+# Add-on signing is not required for DevEdition
+MOZ_REQUIRE_SIGNING=0
+
 ac_add_options --enable-verify-mar
 
 # This will overwrite the default of stripping everything and keep the symbol table.
 # This is useful for profiling and debugging and only increases the package size
 # by 2 MBs.
 STRIP_FLAGS="--strip-debug"
 
-ac_add_options --with-branding=browser/branding/nightly
+ac_add_options --with-branding=browser/branding/aurora
 
 . "$topsrcdir/build/mozconfig.common.override"
 . "$topsrcdir/build/mozconfig.cache"

copy from browser/config/mozconfigs/linux64/nightly
copy to browser/config/mozconfigs/linux64/devedition
--- a/browser/config/mozconfigs/linux64/nightly
+++ b/browser/config/mozconfigs/linux64/devedition
@@ -1,14 +1,16 @@
 . "$topsrcdir/browser/config/mozconfigs/linux64/common-opt"
 
-ac_add_options --enable-profiling
+# Add-on signing is not required for DevEdition
+MOZ_REQUIRE_SIGNING=0
+
 ac_add_options --enable-verify-mar
 
 # This will overwrite the default of stripping everything and keep the symbol table.
 # This is useful for profiling and debugging and only increases the package size
 # by 2 MBs.
 STRIP_FLAGS="--strip-debug"
 
-ac_add_options --with-branding=browser/branding/nightly
+ac_add_options --with-branding=browser/branding/aurora
 
 . "$topsrcdir/build/mozconfig.common.override"
 . "$topsrcdir/build/mozconfig.cache"

copy from browser/config/mozconfigs/macosx64/nightly
copy to browser/config/mozconfigs/macosx64/devedition
--- a/browser/config/mozconfigs/macosx64/nightly
+++ b/browser/config/mozconfigs/macosx64/devedition
@@ -1,20 +1,23 @@
 . "$topsrcdir/browser/config/mozconfigs/macosx64/common-opt"
 
+# Add-on signing is not required for DevEdition
+MOZ_REQUIRE_SIGNING=0
+
 ac_add_options --disable-install-strip
 ac_add_options --enable-verify-mar
-ac_add_options --enable-profiling
+
 ac_add_options --enable-instruments
 
 # Cross-compiled builds fail when dtrace is enabled
 if test `uname -s` != Linux; then
   ac_add_options --enable-dtrace
 fi
 
 if test "${MOZ_UPDATE_CHANNEL}" = "nightly"; then
 ac_add_options --with-macbundlename-prefix=Firefox
 fi
 
-ac_add_options --with-branding=browser/branding/nightly
+ac_add_options --with-branding=browser/branding/aurora
 
 . "$topsrcdir/build/mozconfig.common.override"
 . "$topsrcdir/build/mozconfig.cache"

copy from browser/config/mozconfigs/win32/nightly
copy to browser/config/mozconfigs/win32/devedition
--- a/browser/config/mozconfigs/win32/nightly
+++ b/browser/config/mozconfigs/win32/devedition
@@ -1,10 +1,12 @@
 . "$topsrcdir/build/mozconfig.win-common"
 . "$topsrcdir/browser/config/mozconfigs/win32/common-opt"
 
-ac_add_options --enable-profiling
+# Add-on signing is not required for DevEdition
+MOZ_REQUIRE_SIGNING=0
+
 ac_add_options --enable-verify-mar
 
-ac_add_options --with-branding=browser/branding/nightly
+ac_add_options --with-branding=browser/branding/aurora
 
 . "$topsrcdir/build/mozconfig.common.override"
 . "$topsrcdir/build/mozconfig.cache"

copy from browser/config/mozconfigs/win64/nightly
copy to browser/config/mozconfigs/win64/devedition
--- a/browser/config/mozconfigs/win64/nightly
+++ b/browser/config/mozconfigs/win64/devedition
@@ -1,11 +1,13 @@
 . "$topsrcdir/build/mozconfig.win-common"
 . "$topsrcdir/browser/config/mozconfigs/win64/common-win64"
 . "$topsrcdir/browser/config/mozconfigs/win64/common-opt"
 
-ac_add_options --enable-profiling
+# Add-on signing is not required for DevEdition
+MOZ_REQUIRE_SIGNING=0
+
 ac_add_options --enable-verify-mar
 
-ac_add_options --with-branding=browser/branding/nightly
+ac_add_options --with-branding=browser/branding/aurora
 
 . "$topsrcdir/build/mozconfig.common.override"
 . "$topsrcdir/build/mozconfig.cache"