diff --git a/.stylelintignore b/.stylelintignore
index 185490999507b8a5032977237af50f5e61c71df1..77c1635d90c6480af4ebd3c6e3ec49780eaca571 100644
--- a/.stylelintignore
+++ b/.stylelintignore
@@ -106,3 +106,19 @@ build/pgo/blueprint/**/*.css
 # under our control or we don't want to modify at this point:
 testing/web-platform/mozilla/
 testing/web-platform/tests/
+
+*.inc.css
+
+zen/tests/mochitests/*
+
+# Some CSS files are preprocessed and prettier doesn't handle them well
+# We also dont want to format the CSS files that are generated by the build
+zen/tabs/zen-tabs.css
+zen/common/styles/zen-theme.css
+zen/compact-mode/zen-compact-mode.css
+
+zen/split-view/zen-split-view.css
+zen/spaces/zen-workspaces.css
+zen/common/styles/zen-toolbar.css
+
+*.inc
