How to view-source of a Chrome extension

how-to-view-source-of-chrome-extension.md

Option 1: Command-line download extension as zip and extract

extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"

Thx to crxviewer for the magic download URL.

Option 2: Use the CRX Viewer website

https://robwu.nl/crxviewer/

Option 3: Use the CRX Viewer extension

The Chrome extension source viewer is open source (github repo) and makes this super easy.

Option 3: View source of locally installed extension

1. Find your Chrome local profile directory. Open chrome://version/ and find the "Profile Path:` field. Open that folder up.
2. Open the Extensions/ subfolder
3. All your extensions are here, with typically readable source.

Mapping between locally installed extension IDs and names

• On about:extensions, turn on Developer Mode and you'll see IDs under each entry
• Inside the Extensions/ folders, the manifest.json has a readable name field

Nothing from above worked for me, I kept getting 0B responses until I replaced prodversion=44.0.2403.130 with the actual version of my browser which is 131.0.6778.109 at the time of writing this. -> prodversion=131.0.6778.109 then downloaded the file.

Thanks for your update. This works for me.