[3.13] gh-108172: do not override OS preferred browser if it is a super-string of a known browser (GH-113011)

Lib/webbrowser.py

@@ -32,7 +32,7 @@ def register(name, klass, instance=None, *, preferred=False):
         # Preferred browsers go to the front of the list.
         # Need to match to the default browser returned by xdg-settings, which
         # may be of the form e.g. "firefox.desktop".
-        if preferred or (_os_preferred_browser and name in _os_preferred_browser):
+        if preferred or (_os_preferred_browser and f'{name}.desktop' == _os_preferred_browser):
             _tryorder.insert(0, name)
         else:
             _tryorder.append(name)

Misc/NEWS.d/next/Library/2023-12-12-15-19-58.gh-issue-108172.KyDPuG.rst

@@ -0,0 +1 @@
+``webbrowser`` honors OS preferred browser on Linux when its desktop entry name contains the text of a known browser name.