Chrome Extension path
Storage Location for Unpacked Extensions
Extension engine does not explicitly change their location or add a reference to its local paths, they are left in the place where there are selected from in all Operating Systems.
Ex: If i load a unpacked Extension from E:\Chrome Extension
the unpacked Extension is still in the same location
Storage Location for Packed Extensions
Navigate to chrome://version/
and look for Profile Path, it is your default directory and Extensions Folder is where all the extensions\app\themes
are stored
Ex:
Windows
If my Profile Path is C:\Users\<Your_User_Name>\AppData\Local\Google\Chrome\User Data\Default
them my storage directory is
C:\Users\<Your_User_Name>\AppData\Local\Google\Chrome\User Data\Default\Extensions
Linux
Chrome extensions are stored in: ~/.config/google-chrome/Default/Extensions/
Chromium
Chrome extensions are stored in ~/.config/chromium/Default/Extensions
출처 : http://stackoverflow.com/a/14544700