diff --git a/README.md b/README.md
index fe74c61..cb51ed3 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ blur-background-exclude = [
 ![image](https://user-images.githubusercontent.com/82973108/160370578-3ea7e3e9-723a-4054-b7b0-2b0110d809c0.png)
 
 ### Config
-Configuration options can be found by passing in the argument `--help` on the command line, or by specifying a config file with the argument `-c`. The config file is just a simple json file with the keys being the same as the command-line arguments (except without the "--" at the beginning).
+Configuration options can be found by passing in the argument `--help` on the command line, or by specifying a config file with the argument `-c`. The config file is just a simple json file with the keys being the same as the command-line arguments (except without the "--" at the beginning). To exclude windows, create a config file with "exclude-list" (look at example-config.json) and put the window class names to this list, you can find out the name of a class using `xprop | grep WM_CLASS`
 
 # Updating
 cd into the xborders directory and run `git pull origin main`
diff --git a/example_config.json b/example_config.json
index 3c09556..e136725 100644
--- a/example_config.json
+++ b/example_config.json
@@ -1,9 +1,10 @@
 {
-    "border-rgba": "0xFFFFFFFF",
+    "border-rgba": "#FFFFFFFF",
     "border-radius": 14,
     "border-width": 4,
     "border-mode": "outside",
     "disable-version-warning": false,
+    "exclude-list": ["Ulauncher", "firefox"],
 
     "positive-x-offset": 0,
     "positive-y-offset": 0,
diff --git a/xborders b/xborders
index 02bd26a..93f5f3f 100755
--- a/xborders
+++ b/xborders
@@ -22,6 +22,7 @@ VERSION = 3.4
 INSIDE = 'inside'
 OUTSIDE = 'outside'
 CENTER = 'center'
+EXCLUDE = []
 BORDER_MODES = [INSIDE, OUTSIDE, CENTER]
 BORDER_MODE = INSIDE
 BORDER_RADIUS = 14
@@ -168,6 +169,8 @@ def get_args():
                     args.__dict__[ident] = dat[
                         ident
                     ]  # Idea gotten from here: https://stackoverflow.com/a/1325798
+    else:
+        args.exclude_list = []
 
     global BORDER_RADIUS
     global BORDER_WIDTH
@@ -176,6 +179,7 @@ def get_args():
     global BORDER_G
     global BORDER_B
     global BORDER_A
+    global EXCLUDE
     global SMART_HIDE_BORDER
     global NO_VERSION_NOTIFY
     global OFFSETS
@@ -188,6 +192,7 @@ def get_args():
     BORDER_A = args.border_alpha
     NO_VERSION_NOTIFY = args.disable_version_warning
     SMART_HIDE_BORDER = args.smart_hide_border
+    EXCLUDE = args.exclude_list
     OFFSETS = [
         args.positive_x_offset or 0,
         args.positive_y_offset or 0,
@@ -429,6 +434,12 @@ class Highlight(Gtk.Window):
         self.border_path = [x, y, w, h]
 
     def _draw(self, _wid, ctx):
+        active_window = _wid.wnck_screen.get_active_window()
+        if active_window:
+            class_group_name = active_window.get_class_group_name()
+            if class_group_name in EXCLUDE:
+                return
+
         ctx.save()
         if self.border_path != [0, 0, 0, 0]:
             x, y, w, h = self.border_path