Obtain a FireFox performance file by:

1. Make sure scene uses Babylon MAX.
2. Load the scene.
3. Turn on performance profiling.
4. Reload the scene (very important if code like sceneLoader runs on page load).
5. Do anything that might call code in babylon.js not yet encountered.
6. Stop recording, and save the data as a file.

On this page:

1. Select File with 'Browse' button below, and pick the file saved from above.
2. Make any changes of name to babylon file names.
3. Click Generate.
4. Copy the 'custom.cofig.json' file generated in Downloads directory to the Gulp directory.
5. run: 'Gulp build-custom'
6. Copy generated scripts from dist/preview lease to where needed, and test. Tip: test with the max version
7. If need stuff did not get recorded in performance file, then select file(s) & click Generate again.

Firefox Chrome Edge
Profiling file:

Filename: minFilename:
Files Not In Recording: (Select those to still keep)