Answer by eddieringle · Aug 15, 2011 at 10:24 PM
Not possible. While extensions can communicate with each other through message passing, they have to be specifically configured for each message that is passed to them.
Stick with the task manager built in to Chrome/Chromium, that's what it's there for.
Answer by Duodave · Aug 15, 2011 at 10:31 PM
Chrome starts a process for each page/tab you have open, and a process for each extension. It does this for security reasons, so each thing running in a browser is protected. You can disable individual extensions really easily by going to the tools/extensions menu.
Likely your machine is slow for another reason. Try searching for malware.
Answer by KylePolansky · Aug 17, 2011 at 12:38 AM
I would just uninstall all of the ones that you don't need. Or you could try to disable them. Make sure your computer is not synced if you uninstall them, or all you synced computers will take the same action.