In Google Chrome 15, how can I export my extensions to another computer?
This question doesn't apply to Chrome version 15.
I'm trying to copy an extension that no longer exists in the webstore.
You can find All extension here (what you have installed on Google Chrome):
if you have created a profile in Chrome then it will be present in
Profile Name instead of
Default in above address. Just Copy extension file and paste in newer Chrome. You must be careful extension may be incompatible.
Have you tried the Synch function? Wrench->Options->Personal Stuff->Sync->Set up synch. Then you can select to include your extensions.
This guide explains how you can migrate your profile from computer to the next, allowing you to bring your extensions with you:
You can use the Share Extensions extension which allows you to export as BBCode, HTML, Wiki or text list as well as share via Twitter.