diff --git a/app/ui/dialogs.py b/app/ui/dialogs.py
index 8601ca8a..42068e91 100644
--- a/app/ui/dialogs.py
+++ b/app/ui/dialogs.py
@@ -81,10 +81,11 @@ def show_dialog(dialog_type: DialogType, transient, text=None, settings=None, ac
         return get_about_dialog(transient)
 
 
-def get_chooser_dialog(transient, settings, pattern, name):
+def get_chooser_dialog(transient, settings, name, patterns):
     file_filter = Gtk.FileFilter()
-    file_filter.add_pattern(pattern)
     file_filter.set_name(name)
+    for p in patterns:
+        file_filter.add_pattern(p)
 
     return show_dialog(dialog_type=DialogType.CHOOSER,
                        transient=transient,
diff --git a/app/ui/imports.py b/app/ui/imports.py
index 8c203759..97ed8255 100644
--- a/app/ui/imports.py
+++ b/app/ui/imports.py
@@ -30,7 +30,7 @@ def import_bouquet(transient, model, path, settings, services, appender):
         elif bq_type is BqType.WEBTV:
             f_pattern = "webtv.xml"
 
-    file_path = get_chooser_dialog(transient, settings, f_pattern, "bouquet files")
+    file_path = get_chooser_dialog(transient, settings, "bouquet files", (f_pattern,))
     if file_path == Gtk.ResponseType.CANCEL:
         return
 
diff --git a/app/ui/main_app_window.py b/app/ui/main_app_window.py
index bcc645a7..b6669dca 100644
--- a/app/ui/main_app_window.py
+++ b/app/ui/main_app_window.py
@@ -1681,11 +1681,11 @@ class Application(Gtk.Application):
 
     def on_import_m3u(self, action, value=None):
         """ Imports iptv from m3u files. """
-        response = get_chooser_dialog(self._main_window, self._settings, "*.m3u", "m3u files")
+        response = get_chooser_dialog(self._main_window, self._settings, "*.m3u* files", ("*.m3u", "*.m3u8"))
         if response == Gtk.ResponseType.CANCEL:
             return
 
-        if not str(response).endswith("m3u"):
+        if not str(response).endswith(("m3u", "m3u8")):
             self.show_error_dialog("No m3u file is selected!")
             return
 
diff --git a/app/ui/main_helper.py b/app/ui/main_helper.py
index 529f5083..468b86cd 100644
--- a/app/ui/main_helper.py
+++ b/app/ui/main_helper.py
@@ -367,7 +367,7 @@ def assign_picon(target, srv_view, fav_view, transient, picons, settings, servic
     model, paths = view.get_selection().get_selected_rows()
 
     if not p_path:
-        p_path = get_chooser_dialog(transient, settings, "*.png", "png files")
+        p_path = get_chooser_dialog(transient, settings, "*.png files", ("*.png",))
         if p_path == Gtk.ResponseType.CANCEL:
             return
 
diff --git a/app/ui/satellites_dialog.py b/app/ui/satellites_dialog.py
index 1a69dda9..5c9fa190 100644
--- a/app/ui/satellites_dialog.py
+++ b/app/ui/satellites_dialog.py
@@ -9,10 +9,10 @@ from app.commons import run_idle, run_task
 from app.eparser import get_satellites, write_satellites, Satellite, Transponder
 from app.eparser.ecommons import PLS_MODE, get_key_by_value
 from app.tools.satellites import SatellitesParser, SatelliteSource
-from .search import SearchProvider
-from .uicommons import Gtk, Gdk, UI_RESOURCES_PATH, TEXT_DOMAIN, MOVE_KEYS, KeyboardKey, IS_GNOME_SESSION, MOD_MASK
 from .dialogs import show_dialog, DialogType, get_dialogs_string, get_chooser_dialog
 from .main_helper import move_items, scroll_to, append_text_to_tview, get_base_model, on_popup_menu
+from .search import SearchProvider
+from .uicommons import Gtk, Gdk, UI_RESOURCES_PATH, TEXT_DOMAIN, MOVE_KEYS, KeyboardKey, IS_GNOME_SESSION, MOD_MASK
 
 _UI_PATH = UI_RESOURCES_PATH + "satellites_dialog.glade"
 
@@ -84,7 +84,7 @@ class SatellitesDialog:
 
     @run_idle
     def on_open(self, model):
-        response = get_chooser_dialog(self._window, self._settings, "*.xml", "satellites.xml")
+        response = get_chooser_dialog(self._window, self._settings, "satellites.xml", ("*.xml",))
         if response in (Gtk.ResponseType.CANCEL, Gtk.ResponseType.DELETE_EVENT):
             return
 
diff --git a/app/ui/settings_dialog.py b/app/ui/settings_dialog.py
index 43fca07c..e10f0e1d 100644
--- a/app/ui/settings_dialog.py
+++ b/app/ui/settings_dialog.py
@@ -689,7 +689,7 @@ class SettingsDialog:
 
     @run_idle
     def add_theme(self, path, button):
-        response = get_chooser_dialog(self._dialog, self._settings, "*.tar.*", "")
+        response = get_chooser_dialog(self._dialog, self._settings, "Themes Archive [*.xz, *.zip]", ("*.xz", "*.zip"))
         if response in (Gtk.ResponseType.CANCEL, Gtk.ResponseType.DELETE_EVENT):
             return
         self._appearance_box.set_sensitive(False)