diff --git a/.gitmodules b/.gitmodules
index 338f571..deaa8d9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -73,3 +73,6 @@
 [submodule "plugins/gratitude"]
 	path = plugins/gratitude
 	url = https://github.com/BlythT/Gratitude-Millennium-Plugin
+[submodule "plugins/proton-prefix-browser"]
+	path = plugins/proton-prefix-browser
+	url = https://github.com/EvilNick2/proton-prefix-browser.git
diff --git a/plugins/proton-prefix-browser b/plugins/proton-prefix-browser
new file mode 160000
index 0000000..17374f1
--- /dev/null
+++ b/plugins/proton-prefix-browser
@@ -0,0 +1 @@
+Subproject commit 17374f1a0061742859a38bb57bb84718b9287f46