diff --git a/thunderbird.spec b/thunderbird.spec
index a5bd536..624d694 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -239,6 +239,28 @@ echo "ac_add_options --disable-elf-hack" >> .mozconfig
 echo "ac_add_options --disable-webrtc" >> .mozconfig
 %endif
 
+%ifarch armv7hl
+echo "ac_add_options --with-arch=armv7-a" >> .mozconfig
+echo "ac_add_options --with-float-abi=hard" >> .mozconfig
+echo "ac_add_options --with-fpu=vfpv3-d16" >> .mozconfig
+echo "ac_add_options --disable-elf-hack" >> .mozconfig
+%endif
+%ifarch armv7hnl
+echo "ac_add_options --with-arch=armv7-a" >> .mozconfig
+echo "ac_add_options --with-float-abi=hard" >> .mozconfig
+echo "ac_add_options --with-fpu=neon" >> .mozconfig
+echo "ac_add_options --disable-elf-hack" >> .mozconfig
+echo "ac_add_options --disable-ion" >> .mozconfig
+echo "ac_add_options --disable-yarr-jit" >> .mozconfig
+%endif
+%ifarch armv5tel
+echo "ac_add_options --with-arch=armv5te" >> .mozconfig
+echo "ac_add_options --with-float-abi=soft" >> .mozconfig
+echo "ac_add_options --disable-elf-hack" >> .mozconfig
+echo "ac_add_options --disable-ion" >> .mozconfig
+echo "ac_add_options --disable-yarr-jit" >> .mozconfig
+%endif
+
 #===============================================================================
 
 %build