Long have we searched for an easy way to sync browser extensions across multiple machines, and for Chrome users that day has finally come. If you're running the Dev channel, here's how you can easily enable extension syncing.
Google Chrome has had bookmark, preference, and theme syncing for awhile, but today's Dev channel update introduced the most heavily anticipated syncing feature to the list: extension syncing. Just like your bookmarks or preferences, after enabling extension syncing, any copy of Chrome on which you are logged into your Google Account will have the same extensions as your other machines—so from now on, you only have to download, install, and configure them once. (Or at least in theory; as this is the dev channel, you can expect that you might encounter a bug or three.)
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I'm really glad to see this implemented finally. Not that it's been that big a hassel to find and install the extensions again, but this is definitely going to make it that much easier.
Chrome is just getting better and better.
Edit: Please remember that this is a new feature, and may be buggy. Before you enable it, check out this bug report
from the Chromium team.