diff --git a/netwerk/test/unit/xpcshell_b2g.ini b/netwerk/test/unit/xpcshell_b2g.ini
index 844c778793c5..170198555f66 100644
--- a/netwerk/test/unit/xpcshell_b2g.ini
+++ b/netwerk/test/unit/xpcshell_b2g.ini
@@ -6,4 +6,4 @@ skip-if = buildapp != 'b2g'
 # For bug 1148503.  This is to accommodate non-mozilla-central that didn't
 # include required files for this test.
 [test_pac_generator.js]
-requesttimeoutfactor = 2
+requesttimeoutfactor = 4
diff --git a/toolkit/components/osfile/tests/xpcshell/xpcshell.ini b/toolkit/components/osfile/tests/xpcshell/xpcshell.ini
index 6f0f370587a2..c8efff08f3f8 100644
--- a/toolkit/components/osfile/tests/xpcshell/xpcshell.ini
+++ b/toolkit/components/osfile/tests/xpcshell/xpcshell.ini
@@ -34,6 +34,7 @@ requesttimeoutfactor = 4
 [test_telemetry.js]
 [test_duration.js]
 [test_read_write.js]
+requesttimeoutfactor = 4
 [test_compression.js]
 [test_osfile_writeAtomic_backupTo_option.js]
 [test_osfile_writeAtomic_zerobytes.js]