diff --git a/tools/wptrunner/requirements_firefox.txt b/tools/wptrunner/requirements_firefox.txt
index 1f9033c09fe8db..cc27aa9550ff6c 100644
--- a/tools/wptrunner/requirements_firefox.txt
+++ b/tools/wptrunner/requirements_firefox.txt
@@ -3,7 +3,7 @@ mozcrash==2.1.0
 mozdevice==4.1.0
 mozinstall==2.0.1
 mozleak==0.2
-mozprofile==2.5.0
+mozprofile==2.6.0
 mozrunner==8.2.1
 mozversion==2.3.0
 psutil==5.9.1