diff --git a/__main__.py b/__main__.py
index 3630a32..b63f8d1 100644
--- a/__main__.py
+++ b/__main__.py
@@ -5,7 +5,7 @@
 from github import GithubClient
 from jira import JiraClient
 from testrail import TestRailClient
-from utils.constants import PROJECTS_MOBILE, PROJECTS_ECOSYSTEM, PLATFORM, REPORT_TYPES # noqa
+from utils.constants import PROJECTS_MOBILE, PROJECTS_ECOSYSTEM, PROJECTS_THUNDERBIRD, PLATFORM, REPORT_TYPES # noqa
 
 
 def parse_args(cmdln_args):
@@ -58,6 +58,9 @@ def validate_project(platform, project, report_type):
     elif platform == 'ecosystem' and project not in PROJECTS_ECOSYSTEM:
         print(f"Error: Invalid project '{project}' for ecosystem. Valid options are {PROJECTS_ECOSYSTEM}") # noqa
         sys.exit(1)
+    elif platform == 'thunderbird' and project not in PROJECTS_THUNDERBIRD:
+        print(f"Error: Invalid project '{project}' for ecosystem. Valid options are {PROJECTS_THUNDERBIRD}") # noqa
+        sys.exit(1)
 
 
 def main():
diff --git a/utils/constants.py b/utils/constants.py
index 1e8e285..b28f0de 100644
--- a/utils/constants.py
+++ b/utils/constants.py
@@ -1,6 +1,11 @@
 PLATFORM = [
     'mobile',
-    'ecosystem'
+    'ecosystem',
+    'thunderbird'
+]
+
+PROJECTS_THUNDERBIRD = [
+    'thunderbird'
 ]
 
 PROJECTS_ECOSYSTEM = [