diff --git a/third_party/mozdebug/mozdebug/mozdebug.py b/third_party/mozdebug/mozdebug/mozdebug.py
index 4cb18ccca6d..51af36c78fa 100644
--- a/third_party/mozdebug/mozdebug/mozdebug.py
+++ b/third_party/mozdebug/mozdebug/mozdebug.py
@@ -36,6 +36,7 @@ _DEBUGGER_INFO = {
     "cgdb": {"interactive": True, "args": ["-q", "--args"]},
     "rust-gdb": {"interactive": True, "args": ["-q", "--args"]},
     "lldb": {"interactive": True, "args": ["--"], "requiresEscapedArgs": True},
+    "rust-lldb": {"interactive": True, "args": ["--"], "requiresEscapedArgs": True},
     # Visual Studio Debugger Support.
     "devenv.exe": {"interactive": True, "args": ["-debugexe"]},
     # Visual C++ Express Debugger Support.
diff --git a/third_party/mozdebug/patches/0001-Add_rust-lldb_debugger.patch b/third_party/mozdebug/patches/0001-Add_rust-lldb_debugger.patch
new file mode 100644
index 00000000000..bf30daef4c4
--- /dev/null
+++ b/third_party/mozdebug/patches/0001-Add_rust-lldb_debugger.patch
@@ -0,0 +1,12 @@
+diff --git a/mozdebug/mozdebug.py b/mozdebug/mozdebug.py
+index 4cb18ccca6dd..51af36c78fa2 100644
+--- a/mozdebug/mozdebug.py
++++ b/mozdebug/mozdebug.py
+@@ -36,6 +36,7 @@
+     "cgdb": {"interactive": True, "args": ["-q", "--args"]},
+     "rust-gdb": {"interactive": True, "args": ["-q", "--args"]},
+     "lldb": {"interactive": True, "args": ["--"], "requiresEscapedArgs": True},
++    "rust-lldb": {"interactive": True, "args": ["--"], "requiresEscapedArgs": True},
+     # Visual Studio Debugger Support.
+     "devenv.exe": {"interactive": True, "args": ["-debugexe"]},
+     # Visual C++ Express Debugger Support.