diff --git a/desktop/meson.build b/desktop/meson.build
index e913387d0f..ab59ec23d3 100644
--- a/desktop/meson.build
+++ b/desktop/meson.build
@@ -5,7 +5,7 @@ desktop_conf.set('GIMP_COMMAND',      gimp_command)
 desktop_conf.set('GIMP_VERSION',      gimp_version)
 desktop_conf.set('GIMP_APP_VERSION',  gimp_app_version)
 desktop_conf.set('GIMP_DESKTOP_NAME', gimp_desktop_name)
-desktop_conf.set('MIME_TYPES',        ';'.join(MIMEtypes))
+desktop_conf.set('MIME_TYPES',        'image/x-xcf;' + MIMEtypes_dep.get_variable('MIMEtypes'))
 desktop_conf.set('BUG_REPORT_URL',    bug_report_url)
 
 desktopfilein = configure_file(
diff --git a/meson.build b/meson.build
index 9e2b03d0f1..50c72da673 100644
--- a/meson.build
+++ b/meson.build
@@ -742,44 +742,12 @@ have_doc_shooter= x11_target
 ################################################################################
 # Plugins (optional dependencies)
 
-# The list of MIME types that are supported by plug-ins
-MIMEtypes = [
-  'image/bmp',
-  'image/g3fax',
-  'image/gif',
-  'image/svg+xml',
-  'image/x-compressed-xcf',
-  'image/x-fits',
-  'image/x-gimp-gbr',
-  'image/x-gimp-gih',
-  'image/x-gimp-pat',
-  'image/x-pcx',
-  'image/x-portable-anymap',
-  'image/x-portable-bitmap',
-  'image/x-portable-graymap',
-  'image/x-portable-pixmap',
-  'image/x-psd',
-  'image/x-sgi',
-  'image/x-sun-raster',
-  'image/x-tga',
-  'image/x-xbitmap',
-  'image/x-xcf',
-  'image/x-xwindowdump',
-]
-
-
-
 libtiff_minver = '4.0.0'
 libtiff = dependency('libtiff-4', version: '>=' + libtiff_minver)
-MIMEtypes += 'image/tiff'
-
 
 libjpeg = dependency('libjpeg')
-MIMEtypes += 'image/jpeg'
-
 
 zlib = dependency('zlib')
-MIMEtypes += 'image/x-psp'
 
 # Compiler-provided headers can't be found in crossroads environment
 if not meson.is_cross_build()
@@ -793,15 +761,12 @@ liblzma = dependency('liblzma', version: '>='+liblzma_minver)
 
 
 ghostscript = cc.find_library('gs', required: get_option('ghostscript'))
-if ghostscript.found()
-  MIMEtypes += 'application/postscript'
-else
+if not ghostscript.found()
   ghostscript = disabler()
 endif
 
 libpng_minver = '1.6.25'
 libpng = dependency('libpng', version: '>='+libpng_minver)
-MIMEtypes += [ 'image/png', 'image/x-icon']
 
 libmng = dependency('libmng', required: get_option('mng'))
 
@@ -821,14 +786,8 @@ endif
 libaa = cc.find_library('aa', required: get_option('aa'))
 
 libxpm = dependency('xpm', required: get_option('xpm'))
-if libxpm.found()
-  MIMEtypes += 'image/x-xpixmap'
-endif
 
 have_qoi = cc.has_header('qoi.h')
-if have_qoi
-  MIMEtypes += 'image/qoi'
-endif
 
 libiff = dependency('libiff', required: get_option('ilbm'))
 libilbm = dependency('libilbm', required: get_option('ilbm'))
@@ -837,17 +796,11 @@ if libiff.found() and libilbm.found()
 else
   have_ilbm = cc.has_header('libilbm/ilbm.h', required: get_option('ilbm'))
 endif
-if have_ilbm
-  MIMEtypes += 'image/x-ilbm'
-endif
 
 openexr_minver = '1.6.1'
 openexr = dependency('OpenEXR', version: '>='+openexr_minver,
   required: get_option('openexr')
 )
-if openexr.found()
-  MIMEtypes += 'image/x-exr'
-endif
 
 webp_minver = '0.6.0'
 webp_libs = [
@@ -860,13 +813,6 @@ foreach lib : webp_libs
   webp_found = webp_found and  lib.found()
 endforeach
 
-if webp_found
-  MIMEtypes += [
-    'image/x-webp',
-    'image/webp'
-  ]
-endif
-
 libheif_minver = '1.15.1'
 libheif = dependency('libheif', version: '>='+libheif_minver,
   required: get_option('heif')
@@ -960,17 +906,6 @@ if have_heif
   if not can_import_heic and not can_import_avif
     have_heif = false
   endif
-
-  if have_heif
-    # Listing support for both HEIC and AVIF if we build with HEIF support,
-    # because codecs can be added at any time later and we won't be able to edit
-    # the desktop file once it's installed. See discussion in #9080.
-    MIMEtypes += [
-      'image/heif',
-      'image/heic',
-      'image/avif'
-    ]
-  endif
 endif
 
 have_vala = add_languages('vala', required: get_option('vala'), native: false)
@@ -1014,24 +949,15 @@ cairopdf = dependency('cairo-pdf', version: '>='+cairopdf_minver,
   required: get_option('cairo-pdf')
 )
 
-# PDF import support is a granted feature.
-MIMEtypes += 'application/pdf'
-
 wmf_minver = '0.2.8'
 wmf = dependency('libwmf', version: '>='+wmf_minver,
   required: get_option('wmf')
 )
-if wmf.found()
-  MIMEtypes += 'image/x-wmf'
-endif
 
 openjpeg_minver = '2.1.0'
 openjpeg = dependency('libopenjp2', version: '>='+openjpeg_minver,
   required: get_option('jpeg2000')
 )
-if openjpeg.found()
-  MIMEtypes += [ 'image/jp2', 'image/jpeg2000', 'image/jpx', ]
-endif
 
 jpegxl_minver  = '0.7.0'
 libjxl         = dependency('libjxl',
@@ -1042,14 +968,8 @@ libjxl_threads = dependency('libjxl_threads',
                             version: '>='+jpegxl_minver,
                             required: get_option('jpeg-xl')
 )
-if libjxl.found() and libjxl_threads.found()
-  MIMEtypes += 'image/jxl'
-endif
 
 xmc = dependency('xcursor', required: get_option('xcursor'))
-if xmc.found()
-  MIMEtypes += 'image/x-xcursor'
-endif
 
 
 alsa = dependency('alsa', version: '>=1.0.0', required: get_option('alsa'))
@@ -1093,9 +1013,6 @@ endif
 conf.set('HAVE_DX_DINPUT', directx.found())
 
 cfitsio_dep = dependency('cfitsio', required: get_option('fits'))
-if cfitsio_dep.found()
-  MIMEtypes += 'image/fits'
-endif
 
 
 ################################################################################
@@ -1176,8 +1093,6 @@ if not pygobject_found
   error('PyGObject is required.')
 endif
 
-MIMEtypes += 'image/openraster'
-
 ## Javascript
 
 gjs = find_program('gjs', required: false)
@@ -1930,9 +1845,8 @@ subdir('po-python')
 subdir('po-script-fu')
 subdir('po-tags')
 subdir('po-tips')
-# Data / Desktop / xml files
+# Data / xml files
 subdir('data')
-subdir('desktop')
 subdir('etc')
 subdir('menus')
 subdir('themes')
@@ -1957,6 +1871,9 @@ subdir('plug-ins')
 subdir('app')
 subdir('app-tools')
 
+# Desktop files
+subdir('desktop')
+
 ################################################################################
 # Make GIMP runnable without being installed for unit-testing or as a build
 # tool.
diff --git a/plug-ins/generate_mime_ext.py b/plug-ins/generate_mime_ext.py
new file mode 100644
index 0000000000..bd1325d9fb
--- /dev/null
+++ b/plug-ins/generate_mime_ext.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+import sys
+import os
+import re
+
+types_associations_list = set()
+
+#Read file loading plug-ins sourcecode
+source_files = sys.argv[3:]
+for source_file in source_files:
+  try:
+    with open(source_file, 'r', encoding='utf-8') as f:
+      content = f.read()
+  except Exception as e:
+    sys.stderr.write(f"(WARNING): Unable to open file {source_file}: {e}\n")
+    continue
+
+  #Parse MIME types or extensions declared in the sourcecode
+  mode = sys.argv[1]
+  if mode == "--mime":
+    function_suffix = 'set_mime_types'
+  elif mode == "--association":
+    function_suffix = 'set_extensions'
+  source_file_ext = os.path.splitext(source_file)[1].lower()
+  if source_file_ext == '.c':
+    if "LOAD_PROC" not in content and "load_procedure" not in content:
+      continue
+    regex = (fr'gimp_file_procedure_{function_suffix}\s*'
+             fr'\(\s*GIMP_FILE_PROCEDURE\s*\(\s*procedure\s*\)\s*,\s*"([^"]+)"')
+  elif source_file_ext == '.py':
+    if "LoadProcedure" not in content:
+      continue
+    regex = fr'procedure\.{function_suffix}\s*\(\s*"([^"]+)"\s*\)'
+  else:
+    continue
+  for match in re.findall(regex, content, re.DOTALL):
+    #(Take care of extensions separated by commas)
+    for mime_extension in match.split(','):
+      trimmed = mime_extension.strip()
+      if trimmed:
+        types_associations_list.add(trimmed)
+
+if mode == "--mime":
+  #Output string with the parsed MIME types
+  print(";".join(sorted(types_associations_list)))
+elif mode == "--association":
+  #Create list with the parsed extensions
+  output_file = sys.argv[2]
+  try:
+    with open(output_file, 'w', encoding='utf-8') as outf:
+      outf.writelines(f"{assoc}\n" for assoc in sorted(types_associations_list))
+  except Exception as e:
+    sys.stderr.write(f"(ERROR): When writing output file {output_file}: {e}\n")
+    sys.exit(1)
diff --git a/plug-ins/meson.build b/plug-ins/meson.build
index 73174556dc..98f402f546 100644
--- a/plug-ins/meson.build
+++ b/plug-ins/meson.build
@@ -1,13 +1,11 @@
 subdir('common')
 
-if get_option('windows-installer') or get_option('ms-store')
-  all_plugins_sources = []
-  foreach plugin : common_plugins_list
-    if plugin.get('name').startswith('file-') and plugin.get('name') != 'file-desktop-link' and plugin.get('name') != 'file-lnk'
-      all_plugins_sources += [ meson.current_source_dir() / 'common' / plugin.get('name') + '.c' ]
-    endif
-  endforeach
-endif
+all_plugins_sources = []
+foreach plugin : common_plugins_list
+  if plugin.get('name').startswith('file-') and plugin.get('name') != 'file-desktop-link' and plugin.get('name') != 'file-lnk'
+    all_plugins_sources += [ meson.current_source_dir() / 'common' / plugin.get('name') + '.c' ]
+  endif
+endforeach
 
 
 complex_plugins_list = [
@@ -72,41 +70,47 @@ endif
 
 foreach plugin : complex_plugins_list
   subdir(plugin.get('name'))
-  if get_option('windows-installer') or get_option('ms-store')
-    foreach sourcecode : plugin_sourcecode
-      if plugin.get('name').startswith('file-')
-        #.ico files are handled in a special way by installer and msix scripts
-        if plugin.get('name') == 'file-ico' and platform_windows
-          continue
-        else
-          all_plugins_sources += [ meson.current_source_dir() / plugin.get('name') / sourcecode ]
-        endif
+  foreach sourcecode : plugin_sourcecode
+    if plugin.get('name').startswith('file-')
+      #.ico files are handled in a special way by installer and msix scripts
+      if plugin.get('name') == 'file-ico' and platform_windows
+        continue
+      else
+        all_plugins_sources += [ meson.current_source_dir() / plugin.get('name') / sourcecode ]
       endif
-    endforeach
-  endif
+    endif
+  endforeach
 endforeach
 
 
 subdir('python')
 
-if get_option('windows-installer') or get_option('ms-store')
-  foreach plugin : python_plugins
-    if plugin.get('name').startswith('file-') 
-      all_plugins_sources += [ meson.current_source_dir() / 'python' / plugin.get('name') + '.py' ]
-    endif
-  endforeach
-endif
+foreach plugin : python_plugins
+  if plugin.get('name').startswith('file-') 
+    all_plugins_sources += [ meson.current_source_dir() / 'python' / plugin.get('name') + '.py' ]
+  endif
+endforeach
 
 
+#Dynamically created list of supported files with the plugins lists above
+MIMEtypes_output = run_command(
+  python,
+  meson.current_source_dir() / 'generate_mime_ext.py',
+  '--mime',
+  meson.current_build_dir() / 'file_mimetypes.list',
+  all_plugins_sources
+).stdout().strip()
+MIMEtypes_dep = declare_dependency(variables : {'MIMEtypes': MIMEtypes_output})
+
 if get_option('windows-installer') or get_option('ms-store')
-  #List of file associations dynamically created with the plugins lists above
   custom_target('file_associations',
     input : all_plugins_sources,
     output : 'file_associations.list',
     command : [
       python,
-      meson.current_source_dir() / 'generate_associations.py',
-      '@OUTPUT@'
+      meson.current_source_dir() / 'generate_mime_ext.py',
+      '--association',
+      '@OUTPUT@',
     ] + all_plugins_sources,
     build_by_default: true
   )