diff --git a/openpype/hosts/standalonepublisher/plugins/publish/extract_thumbnail.py b/openpype/hosts/standalonepublisher/plugins/publish/extract_thumbnail.py
index 941a76b05b..3ee2f70809 100644
--- a/openpype/hosts/standalonepublisher/plugins/publish/extract_thumbnail.py
+++ b/openpype/hosts/standalonepublisher/plugins/publish/extract_thumbnail.py
@@ -5,6 +5,7 @@ import openpype.api
 from openpype.lib import (
     get_ffmpeg_tool_path,
     get_ffprobe_streams,
+    path_to_subprocess_arg,
 )
 
 
@@ -37,82 +38,69 @@ class ExtractThumbnailSP(pyblish.api.InstancePlugin):
         if not thumbnail_repre:
             return
 
+        thumbnail_repre.pop("thumbnail")
         files = thumbnail_repre.get("files")
         if not files:
             return
 
         if isinstance(files, list):
-            files_len = len(files)
-            file = str(files[0])
+            first_filename = str(files[0])
         else:
-            files_len = 1
-            file = files
+            first_filename = files
 
         staging_dir = None
-        is_jpeg = False
-        if file.endswith(".jpeg") or file.endswith(".jpg"):
-            is_jpeg = True
 
-        if is_jpeg and files_len == 1:
-            # skip if already is single jpeg file
-            return
+        # Convert to jpeg if not yet
+        full_input_path = os.path.join(
+            thumbnail_repre["stagingDir"], first_filename
+        )
+        self.log.info("input {}".format(full_input_path))
+        with tempfile.NamedTemporaryFile(suffix=".jpg") as tmp:
+            full_thumbnail_path = tmp.name
 
-        elif is_jpeg:
-            # use first frame as thumbnail if is sequence of jpegs
-            full_thumbnail_path = os.path.join(
-                thumbnail_repre["stagingDir"], file
-            )
-            self.log.info(
-                "For thumbnail is used file: {}".format(full_thumbnail_path)
-            )
+        self.log.info("output {}".format(full_thumbnail_path))
 
-        else:
-            # Convert to jpeg if not yet
-            full_input_path = os.path.join(thumbnail_repre["stagingDir"], file)
-            self.log.info("input {}".format(full_input_path))
+        instance.context.data["cleanupFullPaths"].append(full_thumbnail_path)
 
-            full_thumbnail_path = tempfile.mkstemp(suffix=".jpg")[1]
-            self.log.info("output {}".format(full_thumbnail_path))
+        ffmpeg_path = get_ffmpeg_tool_path("ffmpeg")
 
-            ffmpeg_path = get_ffmpeg_tool_path("ffmpeg")
+        ffmpeg_args = self.ffmpeg_args or {}
 
-            ffmpeg_args = self.ffmpeg_args or {}
+        jpeg_items = [
+            path_to_subprocess_arg(ffmpeg_path),
+            # override file if already exists
+            "-y"
+        ]
 
-            jpeg_items = [
-                "\"{}\"".format(ffmpeg_path),
-                # override file if already exists
-                "-y"
-            ]
-
-            # add input filters from peresets
-            jpeg_items.extend(ffmpeg_args.get("input") or [])
-            # input file
-            jpeg_items.append("-i \"{}\"".format(full_input_path))
+        # add input filters from peresets
+        jpeg_items.extend(ffmpeg_args.get("input") or [])
+        # input file
+        jpeg_items.extend([
+            "-i", path_to_subprocess_arg(full_input_path),
             # extract only single file
-            jpeg_items.append("-frames:v 1")
+            "-frames:v", "1",
             # Add black background for transparent images
-            jpeg_items.append((
-                "-filter_complex"
-                " \"color=black,format=rgb24[c]"
+            "-filter_complex", (
+                "\"color=black,format=rgb24[c]"
                 ";[c][0]scale2ref[c][i]"
                 ";[c][i]overlay=format=auto:shortest=1,setsar=1\""
-            ))
+            ),
+        ])
 
-            jpeg_items.extend(ffmpeg_args.get("output") or [])
+        jpeg_items.extend(ffmpeg_args.get("output") or [])
 
-            # output file
-            jpeg_items.append("\"{}\"".format(full_thumbnail_path))
+        # output file
+        jpeg_items.append(path_to_subprocess_arg(full_thumbnail_path))
 
-            subprocess_jpeg = " ".join(jpeg_items)
+        subprocess_jpeg = " ".join(jpeg_items)
 
-            # run subprocess
-            self.log.debug("Executing: {}".format(subprocess_jpeg))
-            openpype.api.run_subprocess(
-                subprocess_jpeg, shell=True, logger=self.log
-            )
+        # run subprocess
+        self.log.debug("Executing: {}".format(subprocess_jpeg))
+        openpype.api.run_subprocess(
+            subprocess_jpeg, shell=True, logger=self.log
+        )
 
         # remove thumbnail key from origin repre
-        thumbnail_repre.pop("thumbnail")
         streams = get_ffprobe_streams(full_thumbnail_path)
         width = height = None
         for stream in streams:
@@ -121,8 +109,7 @@ class ExtractThumbnailSP(pyblish.api.InstancePlugin):
                 height = stream["height"]
                 break
 
-        filename = os.path.basename(full_thumbnail_path)
-        staging_dir = staging_dir or os.path.dirname(full_thumbnail_path)
+        staging_dir, filename = os.path.split(full_thumbnail_path)
 
         # create new thumbnail representation
         representation = {
@@ -130,15 +117,11 @@ class ExtractThumbnailSP(pyblish.api.InstancePlugin):
             'ext': 'jpg',
             'files': filename,
             "stagingDir": staging_dir,
-            "tags": ["thumbnail"],
+            "tags": ["thumbnail", "delete"],
         }
         if width and height:
             representation["width"] = width
             representation["height"] = height
 
-        # # add Delete tag when temp file was rendered
-        if not is_jpeg:
-            representation["tags"].append("delete")
-
         self.log.info(f"New representation {representation}")
         instance.data["representations"].append(representation)