diff --git a/firefox-tests-xpcshell-freeze.patch b/firefox-tests-xpcshell-freeze.patch
new file mode 100644
index 0000000..1115417
--- /dev/null
+++ b/firefox-tests-xpcshell-freeze.patch
@@ -0,0 +1,14 @@
+diff -up firefox-88.0/testing/xpcshell/runxpcshelltests.py.old firefox-88.0/testing/xpcshell/runxpcshelltests.py
+--- firefox-88.0/testing/xpcshell/runxpcshelltests.py.old	2021-04-30 10:45:14.466616224 +0200
++++ firefox-88.0/testing/xpcshell/runxpcshelltests.py	2021-04-30 10:45:21.339525085 +0200
+@@ -1382,8 +1382,8 @@ class XPCShellTests(object):
+                         self.log.info("Process %s" % label)
+                     self.log.info(msg)
+ 
+-            dumpOutput(proc.stdout, "stdout")
+-            dumpOutput(proc.stderr, "stderr")
++            #dumpOutput(proc.stdout, "stdout")
++            #dumpOutput(proc.stderr, "stderr")
+         self.nodeProc = {}
+ 
+     def startHttp3Server(self):
diff --git a/firefox.spec b/firefox.spec
index 7bc4eb8..f321553 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -27,11 +27,6 @@
 # https://bugzilla.redhat.com/show_bug.cgi?id=1897522
 ExcludeArch: s390x
 
-# Exclude ARM due to
-# https://bugzilla.redhat.com/show_bug.cgi?id=1922599
-# https://bugzilla.redhat.com/show_bug.cgi?id=1942516
-ExcludeArch: armv7hl
-
 %ifarch armv7hl
 %global create_debuginfo  0
 %endif
@@ -213,6 +208,7 @@ Patch58:        firefox-crashreporter-build.patch
 # GENDIFF_DIFF_ARGS=-U0 gendiff firefox-xxxx .firefox-tests-reftest
 Patch100:       firefox-tests-xpcshell.patch
 Patch101:       firefox-tests-reftest.patch
+Patch102:       firefox-tests-xpcshell-freeze.patch
 
 # Fedora specific patches
 Patch215:        firefox-enable-addons.patch
@@ -451,6 +447,7 @@ This package contains results of tests executed during build.
 # Test patches
 %patch100 -p1 -b .firefox-tests-xpcshell
 %patch101 -p1 -b .firefox-tests-reftest
+%patch102 -p1 -b .firefox-tests-xpcshell-freeze
 
 # Fedora patches
 %patch215 -p1 -b .addons
diff --git a/run-tests-wayland b/run-tests-wayland
index 8efff7e..4a3ebda 100755
--- a/run-tests-wayland
+++ b/run-tests-wayland
@@ -22,8 +22,9 @@ while (( "$#" )); do
   shift
 done
 
-MACH_USE_SYSTEM_PYTHON=1
-MOZ_NODE_PATH=/usr/bin/node
+export MACH_USE_SYSTEM_PYTHON=1
+export MOZ_NODE_PATH=/usr/bin/node
+
 MOCHITEST_PARAMS="--timeout 1 --chunk-by-dir 4"
 TEST_DIR="test_results"
 mkdir $TEST_DIR